Question

Some person experience difficulty in night vision since their childhood or adolescence

Answer 1

Some person experience difficulty in night vision since their childhood. This is called night blindness or Nyctalopia.

The main reason of night blindness is due to the deficiency of vitamin A. night blindness does not mean that we will not be able to see at night but we face difficulty during night as our eye stops responding to lights.

Answer 2

Answer:

Explanation:

Some people have deficiency of vit.A since childhood or after adolescence. This deficiency causes night blindness