Question

Some persons experience difficulty in night vision since their childhood or adolescence​

Answer 1

Answer:

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

Explanation:

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.