Multiple choice

Xerophthalmia in children and Nyctalopia (Night blindness) in adults is caused by the deficiency of vitamin

  1. A

  2. D

  3. E

  4. K

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Vitamin A deficiency causes xerophthalmia (dry eyes, corneal damage) in children and night blindness (nyctalopia) in adults because retinal (derived from vitamin A) is essential for rhodopsin formation in rod cells for low-light vision.