One way, it has been found, is to reduce the water content of the lens. Some people have responded well to the new hydro gel contact lenses. Contemporary silicon hydro gel lenses are only about 30% water - which is much less than the 50% to 60% of traditional lenses, and the 70% of soft contact lenses. In addition, the new polymers used in the contact lenses maintain the lens soggy.
Most high water content lenses dehydrate rapidly and rely on the eyes tear film to replenish the lost water. For someone that already has dry eyes, this creates a very uncomfortable contact lens environment. Contact lens related dry eye can be very noticeable at the end of the day or during extended computer use.
Soft lenses have a high water content which makes them satisfied primarily and they retain that high water content in most environments. For a person wearing soft contact lens, this means it does not rely on absorbing as many tears as other lenses to maintain a moist state. Whether at the computer, the theatre, or the beach, soft contact lenses for dry eyes stay comfortable.
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