<prompt> In the grading of trachoma,trachomatous inflammations follicular is defined as the presence of5 or more follicles in the lower tarsal conjunctivaThree or more molecules in the lower tarsal conjunctivaFive or more follicles in upper tarsal conjunctivaThree or more follicles in upper tarsal conjunctiva  <response>: The pneumonic is FIST-O Refer: Khurana 6th edition page number 65 