In xerophthalmia classification X 2 stage is -: (A) Bitots spots, (B) Corneal xerosis, (C) Corneal ulceration, (D) Corneal scar
Answer is B. Ans. is 'b' i.e., Corneal xerosis WHO classification (1982)o The new xerophthalmia classification (modification of original 1976 classification) is as follows :XN Night blindnessXIA Conjunctival xerosisX1B Bitot's spotsX2 Corneal xerosisX3A Comeal ulceration/keratomalacia affecting less than one-third comeal surface.X3B Comeal ulceration/keratomalacia affecting more than one-third comeal surface.XS Corneal scar due to xerophthalmia XF Xerophthalmic fundus.