Effect of Intranasal Corticosteroids on Intraocular Pressure and Nerve Fiber Layer Thickness: A Cross-Sectional Study at a Tertiary Care Hospital in Western Saudi Arabia.

Background Rhinitis represents a global health problem, affecting 10%-20% of the population in Saudi Arabia. Topical intranasal corticosteroids (INCS) are widely used by otolaryngologists to treat patients with rhinitis for long periods. Although the effects of orally administered corticosteroids on intraocular pressure (IOP) and lens opacity are well established, the impact of INCS is not well defined.