Xerophthalmia is caused by the deficiency of _____________
The correct option is A vitamin A
Xerophthalmia is caused by the deficiency of vitamin A. It is a condition during which eyes fail to produce tears which help in lubrication. Due to this the cornea and eyelids become dry. The eyelids may swell and the cornea may become opaque. If untreated xerophthalmia may lead to blindness.
The deficiency of vitamin C causes scurvy. The deficiency of vitamin B causes beriberi. Deficiency of vitamin D causes rickets.