Many people with cataract don't even know they have it. Other factors that may contribute to cataract development are low serum calcium levels, diabetes, long-term use of corticosteroids, and other inflammatory and metabolic disorders. In many cases, the cause of cataract is unknown. The primary prevention involves controlling associated diseases and avoiding exposure to factors known to promote cataract formation. Wearing sunglasses when you are outside during the day can reduce the amount of UV light your eyes are exposed to.
Cataract treatment is done simply to improve vision.
For some people changing their glasses, getting stronger bifocals, or using a magnifying lens is helpful enough. Others choose to have cataract surgery . If you are not bothered by a cataract, then treatment is usually not necessary. On occasion, there may be an additional eye problem that the doctor needs to see or treat and the cataract impairs the doctors view. In these cases, cataract surgery may be required to allow proper treatment of the other eye problem.