Question

After examining eyes of a person doctor tells him that he has cataract . State what happens to the eye in such a state. Suggest one method of it's correction

Answer 1

The person cannot see both near and far objects due to the weakening of ciliary muscles.
Use bifocal lense
It contains both concave (upper part) and convex (lower part)

Answer 2

Our human eye is nothing but an advanced biological lens which works just like any camera.

We know if the camera lens becomes foggy or cloudy due to some reason the picture quality will be degraded of that particular camera.

Similarly cataract is the cloudyness of our human eye lens due to some biological reasons which decreases our eye-sight.

To cure this we have perform medical surgeries in the patient's eye.