Aim: To evaluate the efficacy of 0.1% topical salicylic acid (TSA) to treat iatrogenic chronic blepharoconjunctivitis in patients with primary open angle glaucoma (POAG), treated with topical prostaglandin analogues (TPAs).Methods: Totally 60 patients were randomly distributed into 3 equal size groups, two of which treated with 0. 1% TSA (OMKASA) and 0.1% topical clobetasone butyrate (TCB; VISUCLOBEN) respectively, and one consisting of untreated controls. The parameters taken into account at baseline (T0) and after 30d (T1) of therapy were: conjunctival hyperemia, lacrimal function tests [Schirmer I test and break up time (BUT)] and intraocular pressure (IOP).Results: Conjunctival hyperemia showed a substantial improvement in both treated groups (