“…Among this group of drugs, bimatoprost (Lumigan; Allergan, Irvine, Calif., USA) and travoprost (Travatan; Alcon, Fort Worth, Tex., USA) are two newer widely used intraocular-pressure-lowering agents in patients with glaucoma and ocular hypertension [22, 23]. Side effects associated with this group of drugs are reported as ocular hyperemia, increase in the length and thickness of the eyelashes, eyelid skin darkening, change in iris pigmentation, anterior uveitis and cystoid macular edema [21,24,25,26]. In this study, we compared the ocular surface side effects of bimatoprost and travoprost with regard to tearing response and conjunctival changes secondary to topical administration.…”