Cataract is an opacity in the lens of the eye. The normal lens is transparent and allows light to reach the retina. When it becomes opaque (Cataract) light does not reach the retina and the patient is unable to see clearly.
Why does Cataract form?
Cataract is the most common cause of blindness in our country. The causes o formation of cataract are not fully known. Apart from cataract in old age (senile cataract) cataract can also occur in children (congenital cataract) or Adolescents (Developmental cataract). Injuries can produce cataracts in all age groups. Patients with Diabetes mellitus develop cataracts earlier than a normal person.
It is an aging problem.
Ultraviolet light exposure.
Deficiency of protein and vitamins.