Beginning of cataract and accumulation of copper, lead and cadmium in smokers of rewa, M.P.

Cataract is the major cause of visual impairment and blindness (about 42%) in the world. which is the main cause of avoidable blindness. 90% of cases belong to low and middle income countries including India. Two third of blindness in the world is reported in women. As the old people are increasing due to increased life expectancy number of blind and visually impaired are increasing due to cataract, resulting in social burden all over the world. Cigarette smokers are more at risk for developing cataract at an earlier age than non smokers.