<prompt> In xerophthalmia classification X 2 stage is -Bitots spotsCorneal xerosisCorneal ulcerationCorneal scar  <response>: Ans. is b i.e., Corneal xerosis WHO classification 1982o The new xerophthalmia classification modification of original 1976 classification is as follows :XN Night blindnessXIA Conjunctival xerosisX1B Bitots spotsX2 Corneal xerosisX3A Comeal ulcerationkeratomalacia affecting less than one-third comeal surface.X3B Comeal ulcerationkeratomalacia affecting more than one-third comeal surface.XS Corneal scar due to xerophthalmia XF Xerophthalmic fundus. 