In the grading of trachoma, trachomatous inflammation–follicular is defined as the presence of –: (A) 5 or more follicles in the lower tarsal conunctiva, (B) 3 or more follicles in the lower tarsal conjunctiva, (C) 5 or more follicles in the upper tarsal conjunctiva, (D) 3 or more follicles in the upper tarsal conjunctiva
Answer is C. Under WHO classification, trachocomatous inflammation follicular is defined as at least 5 or more follicles of at least 0.5 mm diameter on upper tarsal conjunctiva (for details see the table of WHO classification in the text of this chapter).