Definition:
Vision problems are anomalies that affect normal eye function. These disturbances are caused by a variety of factors ranging from genetic defects to environmental exposure. Among the main forms of vision problems are cataracts, blurry vision, refractive errors and swelling corneal blood vessels, as well as partial or total blindness. Vision problems can also be an effect of severe conditions such as eye cancers and other malignant growths. Vision problems can be detected by physical eye examinations and be treated with prescription glasses, contact lenses or eye surgery to restore normal vision.
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