Parenchymatous xerosis of conjunctiva is caused by –a) Trachomab) Vitamin A deficiencyc) Vernal catarrhd) Phlyctenular keratoconjunctivitise) Alkali burns: (A) ae, (B) b, (C) ab, (D) ad
Answer is A. Parenchymatous xerosis :- Trachoma, Diphtheria conjunctivitis, SJS, Pemphigus, Thermal/ chemical/ radiational burn, lagophthalmos due to symblepharon.
Epithelial xerosis:- Vitamin A deficiency (Xerophthalmia).