Impact of combination of local carbonic anhydrase inhibitors and beta-blockers on intraocular pressure, visual functions and eye hemodynamics in primary open-angle glaucoma

Abstract

Drug treatment optimization in primary open-angle glaucoma (POAG) is a topical issue of ophthalmology in recent decades. The review focuses on the choice of local hypotensive therapy and the effectiveness of a fixed combination (FC) of dorzolamide / timolol in glaucoma treatment. Since decreased perfusion eye pressure and disturbed regulation of local hemodynamics affect the development and progression of glaucomatous optical neuropathy, the use of anti-glaucomatous drugs or other hypotensive agents requires taking account of their effect on intraocular pressure (IOP), visual functions, and ocular blood flow. Most studies show that the hypotensive and hemodynamic effects of dorzolamide/timolol FC contribute to the preservation of visual fields in POAG patients by reducing significant risk factors for POAG progression, such as increased IOP and blood flow deficiency in the retinal and choroidal vessels. Improved hemodynamic parametersdue to local hypotensive treatment can be considered as basis for visual function stabilization, especially in long-term chronic courses of the disease.

Keywords

• glaucoma
• dorzolamide
• timolol
• hemodynamics