Роль дисфункции эндотелия в патогенезе сосудистых заболеваний органа зрения

Vascular endothelium plays the key role in the control of vascular tone due to release of vasoactive substances. Reduction of retinal, choroidal and optic nerve head blood flow is above all a result of misbalance between endothelium-produced vasoconstrictors and vasodilators mainly ET-1 and NO. NO is involved in the maintenance of choroidal, optic nerve head and retinal basal blood flow. Combination of NO deficiency and overproduction of ET-1 is accompanied by diabetic retinopathy, glaucomatous optic nerve atrophy, retinal vascular occlusion and other ocular disease. In the review, the role of endothelium dysfunction in the pathogenesis of vascular ocular diseases and the advisability of drugs inclusion for correction of endothelium dysfunction in the medical therapies complex are discussed.