You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is In the grading of trachoma, trachomatous inflammation-follicular is defined as the presence of- and explain in detail?
Conjunctival follicles : Follicles look like boiled sagograins and are commonly seen on upper tarsal conjunctiva and fornix; but may also be present in the lower fornix, plica semilunaris and caruncle. Sometimes, (follicles may be seen on the bulbar conjunctiva (pathognomic of trachoma). ref: A K KHURANA OPHTALMOLOGY,E4, Page-64 ref img