<prompt> All are features of Trachoma stage III, exceptHerberts pitsPannusNecrosis in scarScar on tarsal conjunctiva  <response>: Stage III of trachoma is cicatrising or scarring stage. So, Herbert pits are healed scars of Herbert follicles, scar on tarsal conjunctiva necrosis in scar are all the features of stage III. Where as herbert follicles IIa, papillary hyperplasia IIb, Pannus is found in stage II. 