Vitamin A deficiency is characterized by –
High-Yield Explanation
The most characteristic and specific signs of vitamin A deficiency are eye lesions.
These develop before the age of 2 years.
The term xerophthalmia comprises all the occular manifestations of vitamin A deficiency.
Xerophthalmia (Dry eve)
It is a syndrome due to deficiency of vitamin A.
It has following stages
Night blindness --> Earliest ocular symptom
Conjuctival xerosis --> Earliest ocular sign
Bitot's spot
Corneal xerosis
Keratomalacia & corneal ulcers