Ophthalmology Diseases of orbit, Lids and lacrimal apparatus 9a359025 Most common couse of trichiasis is- A Stye B Trachoma C Blephritis D Congenital High-Yield Explanation Other causes are ulcerative blepharitis, healed membranous conjuctivitis ,stye , burns. Ref : Ak khurana 6th edition Ref img