Question: what are the signs and symptoms of xerophthalmia?
Answer: NIGHT BLINDNESS (XN) Night blindness or defective vision in dim light is the earliest clinical manifestation of Vitamin A Deficiency. ... 
CONJUNCTIVAL XEROSIS (X1A) ... 
BITOT'S SPOTS (X1B) ... 
CORNEAL XEROSIS (X2) ... 
CORNEAL ULCERATION AND KERATOMALACIA (X3A and X3B) ... 
CORNEAL SCAR (XS) ... 
XEROPHTHALMIC FUNDUS (XF)