<prompt> Herbes pits are seen in:Vernal conjunctivitisAtopic conjunctivitisGonococcal conjunctivitisChlamydial conjunctivitis  <response>: Trachoma Also called Egyptian ophthalmia is caused by chlamydia trachomatis. Serotypes, A, B, Ba and C are associated with hyperendemic blinding trachoma. Most common mode of trachoma spread is through fomites and flies. Reservoir of infection are children with active disease. It is responsible for 15-20 of worlds blindness. Leading cause of preventable blindness in the world. Incubation period varies from 5 to 21 days Conjunctival reaction in trachoma is both follicular conjunctival follicles and papillary papillary hyperplasia Herbe follicles refer to typical trachoma follicles present in the limbal are pathognomic Herbes pits: cicatrized follicles at the superior lumbus. Note Arlts line: it is thick band of scar tissue in the palpebral conjunctiva of the eye, near the lid margin seen in cicatrizing trachoma 