Cataract
Cataract is the most common cause of vision impairment and blindness in the world. Cataract may originate in various different locations in the lens. Its onset may be in the middle of the lens, on the side or in other positions. Cataract usually starts out in the middle of the lens, in which case it is referred to as nuclear cataract. Cataracts cause the lenses of the eye to become cloudy. Cataract surgery restores vision in eyes that have been affected by cataracts. Symptoms of Cataract: Commonly the symptoms of cataract are double vision, sensitivity to light, the need for more light when reading, diminished night vision, changed prescription power for glasses, dimming and fading of colors Causes of Cataract: The causes of Cataracts include: Alcoholism or heavy alcohol ingestion. Diabetes. Exposure to radiation. Increasing age (over 40 years). Injury to the eye. Overexposure to ultraviolet (UV) light from sunlight. Smoking. Diabetes. Deficiency of vitamin