Cataract is not a hereditary disorder. It is a disease in which the lens of the eyes becomes opaque leading to obstruction of vision. The causes can be varied. Some of the causes are listed below: → Ultraviolet radiation from sunlight and other sources → Diabetes → Hypertension → Obesity → Smoking → Prolonged use of corticosteroid medications → Statin medicines used to reduce cholesterol → Previous eye injury or inflammation → Previous eye surgery → Hormone replacement therapy → Significant alcohol consumption → High myopia