In the grading of trachoma,trachomatous inflammations follicular is defined as the presence of
The pneumonic is FIST-O Refer: Khurana 6th edition page number 65
5 or more follicles in the lower tarsal conjunctiva
Three or more molecules in the lower tarsal conjunctiva
Five or more follicles in upper tarsal conjunctiva
Three or more follicles in upper tarsal conjunctiva
Conjunctiva