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What is In xerophthalmia classification X 2 stage is ? and explain in detail?
Ans. is b i.e., Corneal xerosis WHO classification (1982) The new xerophthalmia classification (modification of original 1976 classification) is as follows : XN Night blindness X1A Conjunctival xerosis X1B Bitot's spots X2 Corneal xerosis X3A Corneal ulceration/keratomalacia affecting less than one-third corneal surface. X3B Corneal ulceration/keratomalacia affecting more than one-third corneal surface. XS Corneal scar due to xerophthalmia XF Xerophthalmic fundus.