We can easily say that trachoma which once was a corneal blinding disease is an entity of past it has been almost completely irradicated. According to WHO, caused by a gram-negative bacillum known as Chlamydia trachomatis serotype ABC causing damage to inner surface of lids leading to pain with subsequent shedding of corneal epithelium leading to corneal ulceration and opacification of cornea WHO gave classification stage of infiltration stage of folliculosis stage  conjunctival scaring  stage of trichiasis corneal opacification sequelae of trachoma are ptosis entropion ectropion trichiasis madarosis symblepharon shortening of fornices trachomatous concretions SN corneal degeneration  complication corneal ulcer treatment of trachoma used to be  treatment of disease and treatment of sequelae and corneal blindness Share your views.