5 Reasons to Wear Focus Night and Day Contact Lenses

Focus Night and Day contact lenses are silicone hydrogel - a combination of hydrogel, a soft plastic containing water and silicone, a compound that allows oxygen to pass through it. The combination creates a lens material capable of absorbing six times more oxygen than standard lenses hyrogel. Oxygen is essential for optimal eye health.

The Focus Night and Day lens is flexible, stays wet, and is resistant to dehydration. Focus Night and Day lenses are beneficial insofar as they are durable, long-lasting, comfortable and easy to maintain. Moreover, the risk of infection is reduced and not having to take the lenses every night to minimize the problems that some contact lens wearers.

Focus Night and Day contact lenses were the first to be FDA (Food and Drug Administration) approved for continuous wear 24 hours a day for as long as 30 days. Although the lenses are approved for use without the elimination of up to 30 days, this list may not satisfy everyone. The duration of wear depends on the recommendation of an eye care doctor.

During a year-long U.S. clinical study in 1300 that used eyes Focus Night and Day lenses, 1000 were able to complete the year of wear, and 67 percent used the lens for a period of 22 to 30 days.

Focus Night and Day contact lenses are some risks and side effects. As with any product of contact lenses, users are at risk of developing an eye infection, which increases the risk for those who use continuously, or for extended periods of time.

Another possible side effect of enlargement wear Focus Night and Day is the inflammation of the cornea. Patients often have no symptoms, but those who do report redness, light sensitivity, blurred vision and malaise.

A British study conducted at the University of Manchester in 2005 found that people who slept in this type of hydrogel lenses are five times more likely to develop keratitis (inflammation of the cornea) than those who slept the use of silicone hydrogel lenses .

Some less serious side effects of enlargement wear Focus Night and Day contact lenses include pink eye or conjunctivitis, eyelid irritation, dry eyes, and slight burning or itching. Anyone who has any discomfort or side effects should immediately contact their eye care doctor.

Sharingan Contacts

A call to all fans of Naruto: If you want to imitate the sharing red eyes, now is your time to shine and impress all your friends fellow Naruto. Let's let our friends not to Naruto in the fun. Sharing eyes are designed after red-eye with a thin black outline around the circle and move a few points - three or four - which is located near the cornea and are shaped crescent. There are several variations of these contact lenses for different characters.

This Naruto fashion craze that has become an instant hit in the fantasy parties is an emulation Uchiha clan in the series Nauta. This clan is easily identifiable because the eyes of this condition, which seems to have several students who help them in their only Jutsu - ninja skills. The characters that you can see the sporting eyes are sharing Sasuke Uchiha, Itachi Uchiha, Kakashi Hatake and Tobi. Depending on who is going to represent characters in a costume party, you can fashion yourself after one of these four characters.

Contact lenses companies have been affected in this trend and have begun to make contact lenses imitating sharing eyes. Most of them are identical to those eyes that you see in the series Naruto and Naruto any good fan will be able to instantly locate and connect to all of you in this Naruto bail. Who knew that contacts can be a factor reunion?

Turning to the types of characters that can represent and contact lenses that are available are as follows:

• Sasuke Uchiha-red iris contacts with small lines that are at the top and bottom of the lens. The unique feature here is that there were two false students who revolve around his royal student.

• DC-Uchiha are two contact lenses with three students with false thin, black lines that revolve around the actual student. An iris is white while the iris of the lens by contact with others is blue.

• Kakashi Hatake-has a red iris with three false students and small, thin and black-white lines that revolve around his pupil.

These are the current sharing contact lenses available for Sasuke Uchiha, Itachi Uchiha and Kakashi Hatake. Unfortunately, Tobi not have a series of contacts sharing eye out on the market. However, the word on the street is Tobi fans will not have to wait much longer than for sharing these special effects contact lenses.

You can find these contacts in a variety of places. However, you need a prescription for these contact lenses to protect their health and reputation of the sale of contact lenses. If you have a recipe contact and are a fan of the Naruto series then you are the perfect candidate for sharing contacts and that are suitable for you!

If you are going to a convention Naruto Naruto or a party, be sure to get everything in order to buy sharing contact lenses and wear to his next event. You will be an eye turner, literally!

Non-Prescription Color Contact Lenses - Cosmetic Contacts For a Dramatic New Look

Contact lenses have created a new aspect for those who wear glasses. They have allowed people with low vision to see clearly, without having to wear glasses, giving them confidence and raise their self-esteem. They were a bargain for millions of people. Recent developments in contact lenses have led even to users change their eye color.

For those who do not wear glasses, and still want the benefits of color contacts, non-prescription colored lenses are available to the public.

Colored contacts without a prescription can change their entire appearance. You can go blue eyes to brown to green if you wish. Color contacts are increasingly popular because they can create a dramatic new image for those who want to change their appearance. These objectives are becoming as common as the use of compensating change their appearance cosmetically. They are also safe and easy to use, as long as instructions are followed.

Non-prescription lenses color, also known as Plane, are available through the main suppliers of contacts and generic. If you are interested in these colored contact lenses only bought without a prescription from a company that has a good reputation and have an experience in the field of contacts. These companies produce lenses made of the highest quality of materials created especially for contacts.

In addition, it is important that their lenses fit comfortably into his eyes without irritation. More expensive, not brands may use inferior materials that can irritate or damage their eyes.

You can buy colored lenses online, however there are factors that you need to take into consideration before doing so. Despite non-prescription contact lens color, you still need to see a doctor for a prescription.

The reason for this is because contacts have many properties and the need to be installed in their eyes. Each person has their eyes differently and the diameter of the eye and your doctor can take remedial measures. Without this step, you can damage your eyes permanently. When you purchase without a prescription glasses, you are purchasing a generic size that may be too big for your eyes and can result in permanent damage to his corneas.

Like the prescription as contacts, non-prescription colored contact lenses are disposable. They are meant to be used for a certain period of time and not beyond.

Non Prescription Contact Lenses - Colored Eye Contacts Without a Prescription

Our eyes are one of the most important assets we have and we must protect them. Sometimes, our vision is not at its best and this can be very dangerous because it affects how we perceive the world. However, there are other times we want to improve our natural beauty.

In carrying contacts, can make a variety of things. You can use the contacts to help improve their vision and change their eye color. If you are only interested in changing your eye color, there are lenses that do this without having an effect of increasing, because the use of lenses increase may be detrimental to their health.

Surely we do not wear contact lenses prescribed general, but can not always be a bit of irritation and infection, especially if they are caring for their contact lenses properly. Even some companies that have the power to sell non-prescription lenses do not sell contact lenses without a prescription only for the safety of the customer.

If you're looking to buy a reasonably priced nonprescription contact lenses, there are few places you can see. It is often difficult in the United States in particular, because many places require a prescription. The best source for finding those prices reasonable contact lenses without a prescription on the Internet.

Of course, always taking into account a decision like this, you should make sure they are buying a company. Even word of mouth is a good idea. Ask about his friends and family members should wear non-prescription contact lenses and where they purchased their own.

If you're looking to cosmetically enhance their eyes, one of the most popular choices are the eyes of cat contacts. These non-prescription itself but, once again, many companies are promoting a prescription. These contacts really make your eyes seem to be as cat's eyes.

Contact lenses are excellent for replacing glasses. If you play sports or simply find glasses to be very uncomfortable, then contact lenses can solve this problem. Please note that the use of contact lenses is more responsibility for the user. Also, people who want to improve their appearance or appeal, can use contact lenses to change his eyes. Some of these contact lenses are the cat's eyes, as mentioned above, as well as change their eye color or even imitating the eyes of characters in anime.

No matter what kind of non-prescription contacts you're looking for in the purchase, you need to take proper care of them. This means that if they are disposable, then you must have them and not continue to reuse. If you can reuse them, make sure that you use cleaning solution and keep them stored properly. Moreover, never share your contacts with others.

In general, contact lenses without a prescription can be for everyone, but for their safety and for the sake of his vision should consult an eye doctor to see if using non-prescription contact lenses is right for you.

Color Contact Lenses - Get New Eye Color and Look Beautiful

If you are trying to find the color contact lenses for you, there are a variety of things you need to know. You see, you want to make sure that you will find the contacts that are colored in a way that will make you look wonderful. Firstly, it is important that you know about the two main types of contact lens color that there is today.

There's so much color improving contacts and contacts colored opaque available to you today. The improved contacts can make your eyes shine, make them appear brighter, and change the tone slightly. They are best for people who have eyes that are light in color. However, the opacity of the lens can completely change the color of your eyes, and are ideal for people who have darker eyes, and brown. Here are some things to consider when selecting the type of color contact lenses to their needs.

Subtle changes color with contacts

If you're looking for only a subtle change in color of your eyes, better lenses are generally the best choice for you. If you already have blue eyes, then you can use lenses improved to make them appear much brighter, making it more attractive. Also, you can change the hue and intensity of their eyes with these lenses as well. Grey eyes do well with these lenses, since they can be changed to blue with blue lenses improvement or even green. Although the change is not surprising, that can give a new look in their eyes, adding subtle changes that make you look beautiful.

Dramatic changes with opaque lenses

For those seeking a more dramatic change in their eyes, opaque lenses may be the best option. These options are particularly great for people trying to change brown eyes. With opaque lenses that can make your brown eyes blue or green with no problems at all. Women who have very dark hair can make a dramatic view appear through the use of colored contact lenses that are an impressive blue, making them look amazing. Women who already have green eyes, gray eyes, blue eyes or may even go for honey colors that will give them a warm appearance. Then, with the right opaque contact lenses, can radically change their eye color of a whole new look.

Of course it is very important that you consult an ophthalmologist to ensure that this can be, even if only for cosmetic purposes. If you already have prescription lenses, then you can get easily in color and options. In addition, when using these colored contact lenses, make sure that only carry approximately 6-8 hours at a time and never go to sleep using them. If worn in safety, these colored contact lenses can provide you with a wonderful way to change your appearance and look beautiful.

How to Really Stand Out With Halloween Contact Lenses

Many costume designers who work in theater and films have always used contact lenses to change appearance of an actor really, adding an authentic detail for production. Change the appearance of an actor-eye completely changes the way we see them, as we look at a person's eyes first, when they are implemented. An actor can be dangerous, handsome, beautiful, inhuman, or simply use the magic right contact lens.

Contact lenses designed to change the way a person sees only have become available to the public in recent years. Now the same capacity as apparel designers use to change an actor can be used by you.

At this year's Halloween parties, you can use absolutely certain contact lenses to become just about anyone and anything you want. All you have to make the correct choice to go with his costume.

Designer contact lenses are available in two main varieties. The round disc that puts it in the center of the eyes are the most common and cheapest option. You can see through the center of these lenses, unless you want to make yourself seem to be blind in one eye by using opaque contacts.

Designers use the space around the center clear of these contact lenses to create creepy effects with colors and patterns.

Sclero lenses, which is placed over the entire eye, are another option for the designer contact lenses can be used for Halloween. These lenses can change the color of everything, even the whites of the eyes. If you want to create a unique and very frightening possible to see for yourself this Halloween, what their eyes appear completely red or green could be the contact you're looking for.

Because they are larger and cover the entire eye, sclero lenses allow designers be more creative. You will have a unique look, if you use lenses sclero in connection with that Halloween costume. These contact lenses, however, are much more expensive than the other option and are also more difficult to fit into their eyes, because they are larger.

Most costume contact lenses that are made for use during Halloween are to be flat, a term that means they are designed so that everyone can use safely. Obtaining contacts design with a recipe that can be done, but is more expensive. If you can still see moderately well without their corrective glasses, perhaps not worth spending the extra money, since it is only wearing contacts for a short period of time.

If you want to live an active lifestyle, there is simply no reason why his vision correction needs should hold again. Despite glasses can create limitations regarding the clear vision while being physically active, contact lenses offer an excellent alternative. In fact, many people with vision problems who enjoy participating in sports and other activities to find contacts that offer superior comfort and vision. Contact lenses also provide a range of other benefits when it comes to physical activity. So if you want to enjoy their active lifestyle without the use of goggles, to consider switching to contact lenses so you can experience greater freedom and better vision.

One of the biggest advantages of using contact lenses during their participation in sports or other physical activities is the fact that such lenses provide visión stable that moves with eye and that it will not be interrupted by sliding or putting a ceiling frames. Whether you're running, lunging or tackling, the contacts will allow you to see clearly and consistently with each movement. In addition, unlike glasses, contacts not to slip down or fall off your nose when you're in the middle of a game, a game or activity. Moreover, when you're free to use frames, you will not have to worry about breaking your glasses. Without those concerns to hold back, you can focus all their attention on what you're doing.

While contacts provide greater vision of stability, but also provide a better field of vision corrected. When the use of goggles, the area of acute vision is limited to within the frameworks. In contrast, contacts are used directly on the eye, providing a clear view in all directions and at all points of view. Of course, this means that you will experience much greater peripheral vision you while wearing lenses so you do not miss anything and can perform to their best ability. Since the ability to see clearly is so important for almost any sport or recreational activity, it is not surprising that many people who live an active lifestyle prefer to take advantage of the superior vision offered by contacts instead of glasses.

Contact lenses are also excellent for an active lifestyle, as they are not affected by the weather, moisture or body heat. While lenses will become splattered glasses and flutes of rain and snow, not the contacts. As a result, contacts are especially ideal when they participate in outdoor activities. Moreover, contact lenses not steam as a result of moisture or body heat, so your vision will not be affected and this type of situation will not take away from their performance. Therefore, if your active lifestyle tends to take place indoors, some outdoors or both, contact lenses can be much more convenient to carry glasses.

Another aspect of great asset for people to remember is that contact lenses tend to be much easier and convenient to use protective equipment. For those who participate in sports that require the use of helmets, safety glasses or other gear, glasses can be a major obstacle by pinching or sliding below the fishing gear or simply not appropriate for well below the team. Therefore, for those involved in activities that require such protection, contact lenses can provide a much more convenient and viable option for correcting vision.

Latest developments in the industry contact lenses have also resulted in additional benefits for athletes and active people with vision correction needs. For example, there are now special forms of contact lenses available designed specifically for use while playing sports. Some of these lenses provide UV filter to provide athletes outdoors with protection from sunlight. There are also special lenses available with shades of colors that enhance the appearance of tennis balls or other sports teams, athletes so they can see more clearly its goal. Given these advantages, there is obviously a variety of reasons why many people prefer to use active contacts over glasses.

If you're an athlete or simply someone who enjoys live an active lifestyle and has not tried to use contact lenses, do not let concerns about maintaining affordability back. There is simply no reason for it, as the growing popularity and accessibility of contacts over the years have also led to greater affordability. In fact, now there are many quality discount contact lenses, such as retailers CoastalContacts.com offering an excellent selection of lenses and lens care products of exceptional value. Even the most popular and respected brands are available at discount retailers. Best of all, when you buy your lenses online retailers, you can have them delivered directly to your door for greater comfort. Therefore, taking into account the increasing affordability of contact lenses and the numerous benefits and advantages offered, there are many reasons why you should try to enjoy their active lifestyle unhindered and charges of using glasses.

How to Avoid Serious Eye Problems That Can Ruin Your Life

Although sports and physical activities are good for you, these things can also cause injuries, especially if you are not careful and not to use appropriate gear and equipment. In addition to broken bones, sprains and muscle aches, eye injuries are also quite common in sports. In fact, the figures show that more than 40000 sports related eye injuries occur every year. However, the majority of sports-related injuries and wounds not actually result in permanent physical harm, in fact, quite often heal on their own. However, it is important to note that when it comes to their eyes, some injuries can cause visual loss that may be irreversible.

Two main types of eye injuries

1. Blunt Trauma

A trauma to the eye is an injury that is caused by an object hitting or hit in the eye. This is the most common type of eye injury. The seriousness of this problem, however, depends on the speed, size or hardness of the thing that struck the eye.

The result of a common trauma is actually a black eye. However, if the object that struck the eye is bigger than the eye socket, bone structure surrounding area could be affected. In fact, if the impact is very strong, could lead to serious bone fractures. Moreover, if the object is smaller than the orbit, the area to be affected will be inside the eye.

Apart from black eye and fractured, trauma could also end up in other conditions, such as inflammation, internal bleeding, retinal detachment, breaking the eyeballs, and even damage the optic nerve.

2. Blunt Injuries

Basically, a blunt instrument injury that occurs when an object or penetrates the eye pokes. However, this is quite rare. Most of the time, blunt injuries can be caused when protective eye glasses or break while being worn or when a finger and sharp objects pierce the eye. Usually, you can get scratched his cornea, corneal abrasion call, in an injury like this. Or you may also have lacerations on the eyelid or eyeball.

The treatments or medications needed for eye injuries depend on the severity and location of the problem. If you're lucky, the injury can be fully repaired by surgery or medication. However, there are occasions where blindness is inevitable.

Eye protection suggested Gear

According to experts, approximately 90% of eye injuries can be avoided with the use of protective clothing and equipment. In addition to preventing the incidence of eye injuries, protective glasses can also minimize the severity of injuries.

If you are using contact lenses or eyeglasses, which are more susceptible to injury. Glasses and could break the fragments could pierce the eyes. Shattered contact lenses could bring harm to their eyes. The American Society for Testing and Materials, which is responsible for making and development of protective glasses for different types of sports, suggests that use eye protectors from polycarbonate material.

Glasses made of polycarbonate lenses are the most common methods of protecting eyepieces that can be used for most sports. In fact, you will see professional swimmers, cyclists and even basketball players using this gear. Polycarbonate is a strong material that lessens the impact of an object, and also provides UV protection.

Since children are more prone to eye injuries than adults, would be unwise to leave their children or brothers wear eye protection before they engage in sports. Children are not really aware of the consequences of eye injuries, and therefore can not be very careful when it comes to protecting your eyes.

For adults, the most common types of eye problems involving puffy eyes, wrinkles and discoloration of the skin. For this kind of aesthetic concerns, you can use a high-quality eye cream, as Eyelastin.

A Healthy Eye is a Beautiful Eye

To ensure that your eyes are healthy and beautiful, you may need to have a closer look at the value of an annual review.

Regular eye exams are not only on obtaining optimal vision through the right glasses or contact prescription, but can also help detect early warning signs of diseases that can affect your eye health and health in general.

Since an eye examination can help detect many health problems, professional eye care often working in conjunction with internists and general practitioners to help empower individuals on their health and welfare trip.

Many doctors offered by new technologies such as digital scans the retina of the eye, which are fast and comfortable and produce a computerized image of blood vessels in action. This new technology effectively provides information on eye health and systemic health conditions such as diabetes and glaucoma.

With more than 50 million "prediabetics," 65 million hypertensive and 5 to 10 million Americans with high pressure in the eye, an eye exam is important for the eye and general health.

Taking the following steps, according to experts at LensCrafters, can help maintain healthy eyes:

1. Start a routine regular eye exams with an optometrist or ophthalmologist once a year or as often as the doctor recommends.
2. During the discussion, talk about what the doctor is doing in the various procedures and request a health and welfare of synthesis.
3. Ask your doctor as soon as the next review should be scheduled. The advice may vary depending on several factors, including the patient's history of health and illness, age, and the use of contact lenses or other corrective lenses.
4. Be sure to explore all their options. Ask your doctor about new technologies that can help you see better. For example, Advanced Progressive View (AVP) lenses are available at LensCrafters one of the latest technologies in multifocal lenses.
5. Like other health screenings newspapers, create your next appointment before leaving the doctor's office and ask if you can send them a reminder.
6. Lastly, remind your friends and family members. Make sure you also know about the importance of regular eye exams.

Examinations of the hearing available by independent doctors of Optometry in or next to LensCrafters in most states. Doctors in some states are employees of LensCrafters.

A regular eye exam is more than just a stylish new pair of glasses. You can help keep eyes healthy.

Contact Lens Problems part 2

The problems associated with the use of contact lenses can be:

• Related to the contact lens itself
• Associated problems with conjunctival
• Associated with cornea problems

Contact lenses problems

• Poor lens fit5 - both tight and loose lens can also cause damage. Tight lenses normally feel comfortable at first and then become increasingly uncomfortable for a period of hours. With continued use, Tight Lens can develop the syndrome (see below). Loose lenses result in decentration lens: the patient complains of a greater awareness of the lens and diverse vision with each blink.
• Poor lens care - not clean the lenses properly can result in the accumulation of protein and fat deposits in the lens. These can cause irritation of the cornea and problems of visual acuity. The bacteria, protozoa and fungi can form a film on the lens and the strands of fungi can invade the same lens. Deposits in, or damage to the surface of the lens can also occur due to other substances that may come into contact with hair like spray, makeup, smoke and hand cream. It is important to ensure that the patient is using the lenses properly in order to prevent the formation of future reservoir.
• Lens damage - damage or deterioration of the contact lens is more common with soft lenses that rigid gas permeable (RGP) lenses. Damage can occur in the form of tears, cracks and chips. These can cause local irritation of the cornea. The objective then is also an increased risk of colonization of pathogens that lead to conjunctivitis and keratitis. Deformation of the lens can occur if too much is squeezed during the cleaning process, or if kept in conditions that are too hot (for example, wash in hot water or keep them in a case in the dashboard of the car). Deformation of the lens can lead to distortions induced by the cornea and the difficulty in correcting an error of refraction that can take months to resolve.
• Lens drying - an appearance of "eyes" or reducing the rate of flashing is common in contact lens wearers and may result in drying of the lens with the formation of deposits on their surface. It can also lead to hypoxia corneal.

Problems conjunctival

• Allergic conjunctivitis - arises because of the sensitivity thiomersal, a preservative used in contact lens care solutions. This is presented with redness, burning and itching that is worse in the insertion of lenses and reduces with time. But diagnosis is difficult and conjunctivitis can only occur gradually days or months after the initial exposure. There will be evidence of perilimbal injection (redness that is, around the cornea). The treatment is avoidance of thiomersal; advise patients to visit their contact lenses-provider options for lens care solutions.
• Conjunctivitis papillary giant - this allergic condition arises as a direct consequence of the lens itself and presents itself as the intolerance associated with the lens of the eye irritation and redness. The closer inspection, papillae large (> 3.0mm) can be seen from the upper tarsal conjunctiva. These are considered due to chronic irritation and therefore immune mediated and mechanical means. The treatment involves removing the lens until the condition has been resolved.
• Idiopathic higher limbic keratoconjunctivitis - arises from time to time in hydrogel lens wearers, especially among women aged between 20 and 60 and especially with abnormal thyroid function (30-50%). Again, this is done with the lens intolerance, redness and irritation of the eyes and is associated with fine papillae higher education in the tarsal conjunctiva. Treatment is by removing the lens until the condition has been resolved.
• Toxic conjunctivitis - can occur as a result of cleaning solutions used for the lens due to absorption through the lens of preservatives. This is more of a problem when using soft lenses. The lenses can also be coated with other substances that may be on the side of the user to insert the lens for example, perfume or hand cream. The eye was red and may develop corneal abrasions ± infiltrators and a fine exceeding limbic keratoconjunctivitis. Once again, treatment is removal of the lens until the condition has been resolved. If they are serious ocular lubricants may be needed along with a short course of topical steroids.

The cornea problems

• Superficial punctate keratitis (KPS) - this is the most common problem associated with contact lenses and wear may occur as a result of dry eye. It is then usually seen in the lower half of the cornea as little scattered fluorescein points when the cornea is seen with cobalt blue light from a slit lamp. The dry eye can be aggravated by competing factors such as smoke, dust, air-conditioned rooms and medication (for example, antihistamines, diuretics and psychotropic agents). KPS may also arise in association with any of the conditions described below.
• Mechanical injury - because of cracked or damaged lenses or trauma to insert or remove the lens. You can also arise from the friction of debris accumulated on the lens.
• Tight Lens Syndrome - primarily relate RGP lenses and, especially if used lenses overnight: the lens does not move to blink and it seems stuck in the cornea. Generalised corneal edema is viewed with particular damage seen at 3 pm and 9 am in the position that there can be erosions in epithelial and neovascularization. Compounded by the decline in the rate of blinking and relieved by improving the adjustment of the lens along with the use of lubricants.
• Hypoxia corneal - due to a decrease of oxygen produced by the spread of the lens. This is rare these days because of the quality of lenses, but can occur when individuals do not replace the lenses or use beyond the recommended time. In the acute phase, this will cause corneal ulceration and pain. The chronic hypoxia can be asymptomatic, but the results to changes in the structure of the cornea and neovascularization. The latter feature is more common in hydrogel lens wearers, but can occur with RGP lenses. Neovascularización surface (1-2mm) can be monitored more profound, but growth can lead to bleeding Intracorneal and vision problems. The treatment in a unit of the eyes is by removing the lens and the treatment of corneal ulcers with antibiotics and topical cycloplegic agents. Topical steroids, may also be needed if serious. Patients should be equipped with RGP lenses if they wish to continue using contact lenses and educated in regard to the use healthy.
• CLARE (Contact lens induced red eye) - comes in the wake of a contact lens wear and is associated with an acute onset of red eyes associated with infiltrators. Trying to remove lenses to complete the resolution has occurred. Recurrence is common use long lenses if they are used once again.
• Microbial keratitis

1. Essence: this is the most serious (and most common2) complication of the use of contact lenses and can cause vision problems. It is most common in soft lens wearers wear their lenses on a broad basis when it occurs in 20 per 10000 per year, compared with 1.1 per 10000 per year in people using RGP lenses on a daily basis.
2. Aetiology: The most common cause is infection by Pseudomonas and Klebsiella, although other bacteria and fungi can also cause the problem. In particular, the agency Acanthamoeba spp. can cause a rare but potentially devastating endangering keratitis view (this suspect in the patient that nothing in the pits).
3. Presentation: The patient is presented with pain, watery eyes, irritation and photophobia.
4. Management: Patients must start at the topical antibiotic therapy: vancomycin, gentamicin, tobramycin or a fluoroquinolone urgently and referred to a specialist opinion. The lenses and cleaning solution must accompany the patient and must be cultivated.
5. Prognosis: corneal scarring is a common complication and some patients requiring cornea transplants as a result.

10 Tips for Contact Lens Wearers

Here are 10 tips from the CDC to help contact lens wearers to reduce their risk of eye infections:

1. See your provider eyecare regular eye exams.
2. Wear and replace contact lenses according to the schedule prescribed by your provider eyecare.
3. Remove contact lenses before any activity involving contact with water, including showering, using a hot tub, or swimming.
4. Wash hands with soap and water. Dry your hands before handling contact lenses.
5. Clean contact lenses according to the manufacturer's guidelines and instructions for its care provider eyes.
6. Use fresh cleaning or disinfecting solution each time lenses are cleaned and stored. Never reuse or upper age beyond solution.
7. Never use saline solution and rewetting drops to disinfect lenses. Neither product is an effective or approved disinfectant.
8. Store reusable lenses in the proper storage case.
9. Rinse storage cases with sterile contact lens solution (never use tap water) and leave open to dry after each use.
10. Replace storage cases at least once every three months.

Mail Order/Internet Contact Lenses

In the UK, contact lenses can only be installed by or under the supervision of a registered optometrist, qualified dispensing optician or doctor. Once installation is complete, your doctor will provide a contact lens specification

Under the new regulations introduced in June 2005, then you can buy contact lenses to your specification or that your professional equipped lenses, or other sources, provided that the sale is under the 'general direction' of a registered doctor.

The seller must have a date in the specification in order to provide you with lenses or, if that is not available, check with your doctor the statement. The specification must include an expiration date and the date on which are due for the next round of contact lens check-up. Any sale of contact lenses also must arrange for "aftercare" to be conducted.

Companies in the UK supplying lenses through mail order or Internet must comply with the new rules. Some supermarkets have also begun selling contact lenses through their stores in pharmacies, through websites and telephone lines end.

The expiry date of its specifications and the recommended interval between checks depend on such factors as the type of lens, how you use lenses of the person and their clinical characteristics. However, it is in their best interests to be scheduled for checkups at least every 12 months. The College also recommends that you will only receive a maximum of 6 months' supply, or the number of lenses you expect to need before the expiration date, at any given time.

10 Reasons for Having an Eye Examination

The eye exam is an essential check and health must be part of any normal person's health system. Here are 10 reasons to take a periodic review:

1. You only have one pair of eyes. Once lost, his vision may never be replaced.
2. Unlike their teeth, their eyes usually does not hurt when there is something wrong.
3. The eye exam can pick up early signs of possible conditions blinding eye, such as glaucoma.
4. The former is a problem encountered greater the likelihood of successful treatment. This is particularly true for young children and the elderly.
5. The eye exam also can detect a range of other underlying health problems such as high blood pressure or diabetes.
6. The analysis requires checks if their vision corrected with glasses and determines the best way of correction for your vision.
7. Good vision means working and playing better and safer - in fact, mean a better quality of life. For young people, good vision is critical for learning. An eye examination to detect any problem at the hearing that may be affecting school performance.
8. If no hearing is often assumed that people get older. However, having an eye exam and remedy problems in sight, older people can improve their quality of life significantly.
9. The bad view is dangerous. Make sure it meets the legal requirement for driving. Unless it is advised that there should be an eye examination every two years. It may be necessary to have examinations more frequently depending on their age and medical history.

Plano Contact Lenses

Drawing (cosmetics), contact lenses are not prescription contact lenses with colors and / or patterns on the surface. Like all contact lenses, these new lenses sit directly on the surface above the eye and as such should be treated with the same degree of attention as other types of lenses.
Under the new regulations introduced in June 2005, plane cosmetic contact lenses are now regulated in the same manner as the lenses of energy and may only be provided by or under the supervision of a registered optometrist, qualified dispensing optician or doctor.

Your contact lens professional will advise on the most suitable type of lens, the use schedule, the frequency of replacement and care regime. Regular aftercare check-ups, at intervals specified by your doctor, are essential to ensure that their eyes are healthy and you're using the best lenses for their particular needs.

It is essential that users pay due attention to cleaning and disinfection of these novelty lenses and storage of their cases. Only use care products recommended by your doctor and follow the instructions carefully. When properly equipped and care, cosmetic lenses plane must provide free of problems. However, one must take into account the misuse of contact lenses can lead to serious complications eye.

Corneal Infections & Contact Lenses

Acanthamoeba keratitis is a rare but very painful and potentially blinding infection of the cornea, the transparent covering at the front of the eye. The infection rate is approximately one in every 30000 contact lens wearers and around 85% of cases the condition is associated with the use of contact lenses.

The organism that causes the infection has been found in most environments at home tap water, chlorinated pools, hot tubs and bottled water. It is also present in the nasal passages of healthy people.

Most studies investigating reports of this infection in contact lens wearers linking it directly with poor hygiene patient, usually as a result of poor compliance with the instructions of medical care for the lenses. Risk factors for infection in contact lens wearers are as follows:

• The use of tap water in the lens care (to rinse the lenses or for storage)
• The use of lenses while swimming (without glasses), shower or hot tubs
• The inefficient use of lens care solutions
• Failure to comply with lens care instructions

Most cases of Acanthamoeba keratitis are avoidable if contact lens wearers follow the instructions they receive from their professional contact lenses. Users of contact lenses that do not comply with these instructions may be increasing their risk of infection Acanthamoeba and other agencies. Switching Solutions without the advice of his doctor of contact lenses is not recommended.

Always seek professional advice if you're having trouble with his contact lenses and having regular checkups as specified by your doctor. The symptoms of Acanthamoeba keratitis include the feeling of having something in their eyes, watery eyes, blurred vision, sensitivity to light, swelling of the upper eyelid and extreme pain. However, if you experience these symptoms does not necessarily mean that there Acanthamoeba keratitis.

Whenever you wear glasses should check to see his eyes clear (not redness), feel comfortable and well see. If not, remove your lenses immediately and seek advice from his doctor contact lenses ..

Looking after your eyes - Five Top Tips

• Visit the eye doctor regularly. Optometrists are professionally trained not only to test the hearing and prescribe eyeglasses and contact lenses, but can also spot eye problems and treat infections.
• Being "conscious of the eyes" - make sure each of your eyes one at a time, and if you notice any change, consult your eye doctor
• Parents, always thinking of their children - do not forget, for they know not what "normal" is the vision, to be attentive to symptoms that may have problems. These include cases in which children's eyes seem not to work together, if they rub their eyes frequently or if they seem to close one eye to see more clearly.
• Users of contact lenses - never wear someone else's glasses, washed in tap water or sleep in them (unless your optometrist says you can)
• Buy good quality, dark sunglasses - Sunlight can damage the retina and the lens of the eye, and we run the risk of causing long-term damage to our vision. Good sunglasses need not be expensive: you can buy sunglasses perfectly adequate protection of high street shops. Look out for vessels that carry the CE marking and the British Standard BS EN 1836:1997, which ensures that sunglasses offer a safe level of UV protection.

Myths And Facts About Contact Lenses

Gone are the days when people used to wear those big, old and ugly spectacles for correcting their vision. With the help of latest technology in eye care, people are able to correct their vision with a more advanced formula known as contact lenses. Although the popularity of contacts have really picked up, there exist some myths which have lead to development of certain apprehensions. Some of these are:

A) Myth: Contact lenses are not meant for children.
Fact: Use of contact lenses does not depend upon the age factor. Your child can use lenses for correcting the vision if he/ she is responsible enough to take care of them. In fact maturity factor is important for determining the ability of wearing the contact lenses.

B) Myth: Use of contact lenses may lead to infection.
Fact: Some infections or health problems related to lens do occur but only when you have a poor cleaning routine or are careless about taking care of your lenses. To avoid infections or any other disease, always follow your doctor's directions and keep your lenses clean.

C) Myth: Contacts can get lost behind your eye.
Fact: This statement is 100 percent wrong as it is physically impossible for the contacts to get lost behind your eye. Your lens cannot go beyond the front surface of the eye.

D) Myth: Contact lens usually falls out of eye, a lot.
Fact: This is only possible in hard lenses but in case of soft lenses, the contacts are tucked under the eyelids which makes it impossible for them to move or fall out of the eye. They are also more stable.

E) Myth: It is not safe to wear contact lenses during sports.
Fact: Contact lenses have made a deep impression in the hearts of sports oriented people as it provides a peripheral and wider field of vision without any obstruction. However contact lens are not safe only for water sports.

Contact Lens Problems

Trial and error often is involved in finding the perfect lens for you. People react differently to various lens materials and cleaning solutions. Also, the correct "parameters" of your lens — that is, power, diameter, and curvature — can be finalized only after you've successfully worn the lens. This is especially true for more complex fits involving extra parameters, such as with bifocals or toric contact lenses for astigmatism.
If you experience discomfort or poor vision when wearing contact lenses, chances are that an adjustment or change of lens can help. Today, more contact lens choices than ever are available to provide comfort, good vision, and healthy eyes. If you're not feeling good and seeing well, ask your ECP for help.

By, Liz Segre

Contact Lens Wear and Care

More than 3 million people in the United Kingdom enjoy the many benefits that contact lenses have to offer. Just as the obvious cosmetic advantages, many people actually see better with their contact lenses what to do with their performances, such as contact lenses provide a more natural form of vision correction. There are also many practical advantages for using contact lenses for sports and recreational use.

There are basically two types of contact lenses available: rigid gas permeable and soft. However, there are many different lens materials and designs. The lenses can be used in everyday use, either discarded and every day (daily disposable) or disinfected and re-use, or wear a wide base where they are kept in overnight. Her contact lens professional will advise on the most suitable type of lens, the use schedule, the frequency of replacement regime and care for their needs. Never change the type of lens solution or use, except in your doctor's advice.

Remember that contact lenses can only be installed by or under the supervision of a registered optometrist, qualified dispensing optician or doctor. Regular aftercare check-ups, at intervals specified by your doctor, are essential to ensure that their eyes are healthy and you're using the best lenses for their particular needs. Contact lenses are constantly improving so that even if they have not been successful in the past it's worth trying again. Today almost all those who need vision correction and want to wear contact lenses can do.

Safe use contact lenses
For most people, bear contact lens is safe and completely free of problems. However, research studies have shown a slight increased risk of eye infection associated with contact lens wear compared to not use lenses. Sleeping in your lenses with carries a higher risk than taking out every night, although the new, highly permeable silicone hydrogel lenses can carry a lower risk than traditional extended wear lenses. Rigid gas permeable lenses and disposable daily have a very low incidence of infection.

Useful tips for contact lens care
The following tips apply to all contact lens types:

Always

• Wash, rinse and dry your hands thoroughly before handling their lenses.
• Have an update pair of glasses when you need to remove their lenses.
• Replace lenses in the range specified by your doctor.
• Have regular checkups with your doctor as recommended.
• Get professional advice if you're having trouble with his contact lenses.
• Ask yourself these three important issues every day that you use lenses:

Do my eyes look good?

Do my eyes feel good?

Can I see well?

If you can not answer 'yes' to all these, or if you have any further questions regarding their contact lenses, remove your lenses immediately and seek advice from his doctor contact lenses.

Never

• Go to bed with a sore red eyes - seek advice immediately.
• Bring any contact lens in contact with tap water.
• Wet lenses with their saliva.
• Use your lenses for swimming (unless you use glasses) or shower.

Which Contact Lens Is Right for You?

First, your contacts must address the problem that is prompting you to wear lenses in the first place. Your contact lenses must provide good vision by correcting your
or some combination of those eye problems.

Second, the lens must fit your eye. To do that, lenses come in tens of thousands of combinations of diameter and curvature. Of course, not every lens brand comes in every "size."

Your ECP is skilled in evaluating your eye's physiology, and your eyesight, to determine which lens best satisfies the two criteria above.

Third, you may have another medical need that drives the choice of lens. For example, your ECP might pick a particular lens if your eyes tend to be dry.
Finally, consider your "wish list" of contact lens features — colors, for example, or overnight wear.

When you and your ECP decide on the right lens for you, you'll be given a contact lens prescription. You'll be able to buy a supply of lenses from your ECP or from the many other outlets that sell contact lenses.

By, Liz Segre

Contact Lens Designs

Many lens designs are available to correct various types of vision problems:

• Spherical contact lenses are the typical, rounded design of contact lenses, which can correct myopia (nearsightedness) or hyperopia (farsightedness).
• Bifocal contact lenses contain different zones for near and far vision to correct presbyopia, which is the age-related, decreased ability to obtain a full range of vision.
• Orthokeratology lenses are specially designed to reshape the cornea during sleep, providing lens-free daytime wear.
• Toric contact lenses correct for astigmatism, as well as for myopia and hyperopia.
  

All of these lenses can be custom made for hard-to-fit eyes. Many other additional lens designs are available. Typically these are less common and fabricated for use in special situations, such as correcting for keratoconus.

More Contact Lens Features

Colored Lenses. Many of the types of lenses described above also come in colors that can enhance the natural color of your eyes — that is, make your green eyes even greener, for example. Or these lenses can totally change the eye's appearance, as in from brown to blue.

Special-Effect Lenses. Also called theatrical, novelty, or costume lenses, these take coloration one step further to make you look like a cat, a zombie, or another alter-ego of your choice.

Prosthetic Lenses. Colored contact lenses can also be used for more medically oriented purposes. People with disfigured eyes, as a result of accidents or disease, can use a custom, opaque colored lens to mask the disfigurement and match the appearance of their normal eye.

UV-Inhibiting Lenses. Today, many contacts incorporate an ultraviolet blocker in the lens material, to cut down on UV light that can eventually cause cataracts and other eye problems. You can't see this blocker by looking at the lens. And since contacts don't cover your entire eye, UV blockers cannot substitute for traditional sun protection like good quality sunglasses.

Hybrid Lenses. One brand of lenses features a GP center with a soft outer skirt, providing wearers with both the crisp optics of a rigid lens and the comfort of a larger, soft lens.

By, Liz Segre

Contact Lens Wearing Time

Until 1979, everyone who wore contact lenses removed and cleaned them nightly. The introduction of "extended wear" enabled wearers to sleep in their contacts. Now, two types of lenses are classified by wearing time:

1. Daily wear — must be removed nightly
2. Extended wear — can be worn overnight, usually for seven days consecutively without removal

"Continuous wear" is a type of extended wear lens that can be worn for 30 consecutive nights.

Disposal Intervals for Contact Lenses

One problem with soft contact lenses is that proteins and lipids — which are naturally found in tears — adhere to the surface of the lens, sometimes causing discomfort and providing hiding places for infection-causing germs.

Lens-cleaning products help. But over time buildup still occurs, necessitating lens replacement. Disposable lenses, first introduced in 1987, address this problem in different ways. (Note that, although "disposable" generally means single-use, this is not not always true regarding contact lenses.) Here are the options:

• Daily disposable — replaced every day
• Disposable (used for daytime wear) — replaced every two weeks
• Disposable (used for overnight wear) — replaced every week
• Continuous wear (used for 30-day wear) — replaced monthly
• Planned replacement — replaced monthly or less frequently

By, Liz Segre

Contact Lens Material

Classified by material, there are three types of contact lenses:

1. Hard lenses are made from PMMA — also known as Plexiglas or Lucite. These lenses are virtually obsolete and rarely used.

2. Soft lenses are made from gel-like, water-containing plastics, and are most common. They're a bit larger in size than your iris (the colored part of your eye).

3. GP lenses, also known as RGP or "oxygen permeable" lenses, are made from rigid, waterless plastics and are especially good for presbyopia and high astigmatism. These lenses are usually about eight millimeters in diameter, which is smaller than your iris.

From the introduction of soft lenses in 1971 until relatively recently, most lens brands have been made from "hydrogel" plastics. Recently, new silicone hydrogel contact lenses have been introduced. They have become the contact lenses of choice for many eye care practitioners, because they allow more oxygen to pass through the lens to the eye, and they are less prone to dehydration.

By, Liz Segre

Types of Contact Lenses

Bifocal Contact Lenses provide both near and distance vision
Colored Contact Lenses give your eyes a subtle or dramatic change
Disposable Contact Lenses enable a healthier wearing experience
Extended Wear Contact Lenses for safe overnight wear
Gas Permeable (GP) Contact Lenses for the ultimate in crisp vision
Monovision is an alternative to bifocals for presbyopia
Orthokeratology Lenses for overnight corneal reshaping
Prosthetic Contact Lenses mask eye injury or disfigurements
Silicone Hydrogel Contacts transmit more oxygen to your eyes
Special-Effect Contact Lenses let you become a leopard or cheetah
Specialty Lenses for the "hard-to-fit" patient
Toric Contact Lenses provide good vision if you have astigmatism

About Contact Lenses

Modern contact lenses fall into two categories: soft lenses that are made from water-containing plastics, and GP or "oxygen permeable" rigid contact lenses.
Contact lenses may also be classified by wearing schedule. Daily wear lenses must be removed, cleaned and stored each night, while extended wear contact lenses are made from materials which are safe to be worn during sleep. You may also have heard of "continuous wear" contact lenses, a type of extended wear that can be worn for up to 30 days.
Various lens designs are available for different vision problems. Spherical contact lenses correct nearsightedness or farsightedness and are indicated by a minus or plus in your prescription, respectively. Bifocal contact lenses are similar to multifocal eyeglasses in that they use different optical zones to correct presbyopia (the decreased ability see at both near and far distances). Toric contact lenses correct astigmatism, which can accompany either nearsightedness or farsightedness.
All of the contact lenses mentioned above can be custom fabricated for unusual prescriptions, and many other contact lens designs are available as well, including designs for conditions like keratoconus.
Many lens designs come in colors that can enhance or change your natural eye color. Special-effect contact lenses are also available for novelty use and are used extensively in theatrical and filmed productions. Prosthetic lenses are colored contact lenses that can cosmetically mask eye disfigurement. Many contact lenses also come with an embedded UV inhibitor.
Which is the right contact lens for you? First and foremost, your contact lenses must correct your vision problem. Second, each lens must properly fit your cornea, so contact lenses come in tens of thousands of parameters, meaning the combination of size, shape and power.
Your eye care practitioner will evaluate your eyes to determine which lens is right for you, and will take into account your special needs such as dry eyes, a desire for color change or the need for overnight wear.

History of Contact lens

In 1887, Adolf Fick was apparently the first to successfully fit contact lenses, which were made from blown glass
Leonardo da Vinci is frequently credited with introducing the general principle of contact lenses in his 1508 Codex of the eye, Manual D, where he described a method of directly altering corneal power by submerging the eye in a bowl of water. Leonardo, however, did not suggest his idea be used for correcting vision—he was more interested in learning about the mechanisms of accommodation of the eye.[6]
René Descartes proposed another idea in 1636, in which a glass tube filled with liquid is placed in direct contact with the cornea. The protruding end was to be composed of clear glass, shaped to correct vision; however the idea was impracticable, since it would make blinking impossible.
In 1801, while conducting experiments concerning the mechanisms of accommodation, scientist Thomas Young constructed a liquid-filled "eyecup" which could be considered a predecessor to the contact lens. On the eyecup's base, Young fitted a microscope eyepiece. However, like Leonardo's, Young's device was not intended to correct refraction errors.
Sir John Herschel, in a footnote of the 1845 edition of the Encyclopedia Metropolitana, posed two ideas for the visual correction: the first "a spherical capsule of glass filled with animal jelly", and "a mould of the cornea" which could be impressed on "some sort of transparent medium".[7] Though Herschel reportedly never tested these ideas, they were both later advanced by several independent inventors such as Hungarian Dr. Dallos (1929), who perfected a method of making molds from living eyes. This enabled the manufacture of lenses that, for the first time, conformed to the actual shape of the eye.
It was not until 1887 that a German glassblower, F.E. Muller, produced the first eye covering to be seen through and tolerated.[8] In the next year, the German physiologist Adolf Eugen Fick constructed and fitted the first successful contact lens. While working in Zürich, he described fabricating afocal scleral contact shells, which rested on the less sensitive rim of tissue around the cornea, and experimentally fitting them: initially on rabbits, then on himself, and lastly on a small group of volunteers. These lenses were made from heavy brown glass and were 18–21mm in diameter. Fick filled the empty space between cornea/callosity and glass with a dextrose solution. He published his work, "Contactbrille", in the journal Archiv für Augenheilkunde in March 1888.
Fick's lens was large, unwieldy, and could only be worn for a few hours at a time. August Müller in Kiel, Germany, corrected his own severe myopia with a more convenient glass-blown scleral contact lens of his own manufacture in 1888.[9]
Also in 1887, Louis J. Girard invented a similar scleral form of contact lens.[10]
Glass-blown scleral lenses remained the only form of contact lens until the 1930s when polymethyl methacrylate (PMMA or Perspex/Plexiglas) was developed, allowing plastic scleral lenses to be manufactured for the first time. In 1936, optometrist William Feinbloom introduced plastic lenses, making them lighter and more convenient.[11] These lenses were a combination of glass and plastic.
In 1949, the first "corneal" lenses were developed.[12][13][14][15] These were much smaller than the original scleral lenses, as they sat only on the cornea rather than across all of the visible ocular surface, and could be worn up to sixteen hours per day. PMMA corneal lenses became the first contact lenses to have mass appeal through the 1960s, as lens designs became more sophisticated with improving manufacturing (lathe) technology.
One important disadvantage of PMMA lenses is that no oxygen is transmitted through the lens to the conjunctiva and cornea, which can cause a number of adverse clinical effects. By the end of the 1970s, and through the 1980s and 1990s, a range of oxygen-permeable but rigid materials were developed to overcome this problem. Collectively, these polymers are referred to as "rigid gas permeable" or "RGP" materials or lenses. Although all the above lens types—sclerals, PMMA lenses and RGPs—could be correctly referred to as being "hard" or "rigid", the term hard is now used to refer to the original PMMA lenses which are still occasionally fitted and worn, whereas rigid is a generic term which can be used for all these lens types. That is, hard lenses (PMMA lenses) are a sub-set of rigid lenses. Occasionally, the term "gas permeable" is used to describe RGP lenses, but this is potentially misleading, as soft lenses are also gas permeable in that they allow oxygen to move through the lens to the ocular surface.
The principal breakthrough in soft lenses was made by the Czech chemist Otto Wichterle who published his work "Hydrophilic gels for biological use" in the journal Nature in 1959.[16] This led to the launch of the first soft (hydrogel) lenses in some countries in the 1960s and the first approval of the "Soflens" material by the United States Food and Drug Administration (FDA) in 1971. These lenses were soon prescribed more often than rigid lenses, mainly due to the immediate comfort of soft lenses; by comparison, rigid lenses require a period of adaptation before full comfort is achieved. The polymers from which soft lenses are manufactured improved over the next 25 years, primarily in terms of increasing the oxygen permeability by varying the ingredients making up the polymers.
In 1999, an important development was the launch of the first silicone hydrogels onto the market. These new materials encapsulated the benefits of silicone—which has extremely high oxygen permeability—with the comfort and clinical performance of the conventional hydrogels which had been used for the previous 30 years. These lenses were initially advocated primarily for extended (overnight) wear although more recently, daily (no overnight) wear silicone hydrogels have been launched.

Article source From Wikipedia, the free encyclopedia

What's Contact lens

A contact lens (also known simply as a contact) is a corrective, cosmetic, or therapeutic lens usually placed on the cornea of the eye. Modern soft contact lenses were invented by the Czech chemist Otto Wichterle, who also invented the first gel used for their production.
Contact lenses usually serve the same corrective purpose as conventional glasses, but are lightweight and virtually invisible—many commercial lenses are tinted a faint blue to make them more visible when immersed in cleaning and storage solutions. Some cosmetic lenses are deliberately colored to alter the appearance of the eye.
It has been estimated that 125 million people use contact lenses worldwide (2%),[1] including 28 to 38 million in the United States[1][2] and 13 million in Japan.[3] The types of lenses used and prescribed vary markedly between countries, with rigid lenses accounting for over 20% of currently-prescribed lenses in Japan, Netherlands and Germany but less than 5% in Scandinavia.[1]
People choose to wear contact lenses for various reasons.[4] Some people may consider their appearance to be more attractive with contact lenses than with glasses. Contact lenses are less affected by wet weather, do not steam up, and provide a wider field of vision. They are more suitable for a number of sporting activities.[5] Additionally, ophthalmological conditions such as keratoconus and aniseikonia may not be accurately corrected with glasses.
article source From Wikipedia, the free encyclopedia