A prospective study of efficacy and safety of olopatadine versus azelastine in allergic conjunctivitis at a tertiary care hospital

Background: Allergic conjunctivitis, an ocular surface inflammatory disease with significant social and economic impact affects approximately 25% of the general population. H1 receptor blockers, mast cell stabilizers and drugs that block cytokine and prostaglandin formation form the treatment armamentarium. Olopatadine hydrochloride and Azelastine hydrochloride are dual-acting selective H1 receptor antagonist with mast-cell stabilizing property....