Answers

2015-11-26T21:41:48+05:30
Night blindness is caused by-
1. deficiency of Vitamin A, zinc .
2.because of old age the lens of eyes gets cloudy lead to cataract
3. improper functioning of liver 
  
0
2015-11-26T21:41:52+05:30
Diabetes , Glaucoma ......................... etc..
Hope it helps !!!!
0