Which of the following is the earliest clinical sign of Vit A deficiency?
The ocular manifestation of Vit A deficiency includes night blindness, conjunctival xerosis, Bitot's spot, corneal xerosis and keratomalacia. Extra ocular manifestation of Vit A deficiency includes follicular hyperkeratosis, anorexia and growth retardation. Ref: Park, 21st Edition, Page 568.
Bitot's spot
Corneal xerosis
Conjunctival xerosis
Keratomalacia