Risks of wearing contact lenses

Among all the lenses, PMMA lenses are more likely to damage or scratch the cornea if the lens is not worn properly; does not fit well or if the lens is worn while sleeping. Given their malleable nature, they may also slip off the cornea and slide under the lid of the eye. As far as rigid or hard lenses are concerned, they often pop out of the eye if external distractions occur. However, innovatively designed lenses today have drastically reduced the chances of losing a contact during vigorous activity or exercise.

Rigid gas-permeable lenses and soft extended-wear contacts tend to build up protein deposits and often cause lens related allergies. Protein build-up my cause discomfort to the eyes, blurring of vision and intolerance to the lenses. Eye care professionals will prescribe special cleaning solutions to dissolve the protein.

Lenses that are supposed to be worn on a day-to-day basis should never be worn for an extended period of time. Mistreatment of such lenses can lead to temporary or permanent damage to the cornea.

People who wear lenses even during their sleep have a higher risk of developing infections of the cornea. These infections are often due to poor cleaning and lens care. Improper care and overuse of contact lenses can lead to the intolerance and ultimate rejection of the lenses by the eyes.

The best lenses for people with allergies are rigid gas-permeable or disposable lenses.

Most people who need vision correction can wear contact lenses. However, there are a few exceptions for people who suffer from certain eye conditions. People prone to frequent eye infections, allergies, dry eyes and dusty environments may not be able to wear lenses and maybe deemed high risk.

Read more on Benefits and Disadvantages of Various types of Contact Lenses

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