eye disorders
Trachoma
Symptoms and Signs of Trachoma
Trachoma usually affects both eyes. Five stages are described in the World Health Organization grading system. Trachomatous inflammation-follicular (TF): Characterized by 5 or more follicles in the upper tarsal conjunctiva Trachomatous inflammation-intense (TI): Characterized by pronounced inflammatory thickening of the tarsal conjunctiva that obscures more than half of the normal deep tarsal vessels Trachomatous scarring (TS): Characterized by scarring in the tarsal conjunctiva Trachomatous trichiasis (TT): Characterized by at least one eyelash rubbing the eyeball Corneal opacity (CO): Characterized by easily visible corneal opacity over the pupil Rarely, corneal neovascularization regresses completely without treatment, and corneal transparency is restored. With treatment and healing, the conjunctiva becomes smooth and grayish white. In a population survey in the Nile Delta of Egypt, 6.5% of adults had trachoma; of those, 13% had visual impairment and 8% were blind. 