Contact lens in modern days is gaining popularity among people who need unnatural vision aid. Nearly all individuals know of the existence and use of contact lenses, partially due to the wide spread of new, modern types of lenses introduced into the market. In the beginning, contacts were prescribed for patients with therapeutic or corrective purposes. Nearsightedness and farsightedness are the most common reasons for the usage of corrective contact lenses. Even with the wide availability of lenses for other purposes, contacts for refractive errors correction have remained as the majority. Basic types of contact lenses made for vision correction are the same from most of the manufacturers. Modern contact lens is mostly made from soft materials that are harmless to the eyes.
In the current market, there are still contacts for people who have no problems or whatsoever with their eyes. In this case, contact lenses serve as a sort of accessory. For instance, it is designed to enhance wearers’ look are quite popular. These lenses are formally called cosmetic lenses which can slightly or completely change one’s eye look. They may slightly enhance a natural eye color or bring an unusual appearance.
Apart from those mentioned kinds of lenses, there are also lenses for special eye problems. People who have problems with color vision can get help from special contact lenses. In fact, there are many other conditions that may benefit from task-specific contact lenses, such as bullous keratopathy, dry eyes, corneal ulcers, erosion, Keratitis, corneal edema, descemetocele, corneal ectasis and anterior dystrophy. In particular, there are even lenses used to deliver drugs to the eye.
Individuals who wear contact lenses in any type should be clear of specific wear time and conditions of use. In general, soft contacts have a shorter span. And never leave daily lenses in the eyes overnight.
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