Cataract is the clouding of the eye's lense which causes disability in vision. Cataract can affect one or both eyes and lead to blindness or visual impairments. More than half of India's 65+ population in India are suffering from cataract. CAUSES OF CATARACT: The clouding of the eye happens when protein builds up in the eye's lens. This prevents the light from passing clearly through the lens which causes loss of vision. Cataract is formed when new cells are formed on the outside of the lens and the older cells are compressed to the center of the lens. Mostly cataract form due to aging. However, there are other types of cataract too which are not related to aging.