Vol 5 (2020): Continuous Publishing
Review paper
Published online: 2020-09-18

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Antioxidants in the retina and vitreous — current state of knowledge

Agata Pietras-Baczewska1, Katarzyna Nowomiejska1, Małgorzata Sztanke2, Mario Damiano Toro13, Robert Rejdak1
Ophthalmol J 2020;5:81-86.

Abstract

In the healthy organism, there is a constant balance between the formation and neutralization of free radicals. Oxidative stress is a result of free radicals’ production and naturalization imbalance, in favor of the free radicals’ high concentration. Literature suggests the existence of the relationship between decreased intraocular antioxidant capacity and ocular diseases. Retina and the photoreceptors in particularl, are susceptible to oxygen deficiency due to their great oxygen consumption. The aim of this review was to describe the relationship between oxidative stress and the most common vitreoretinal disorders. The authors focused on four ocular diseases such as vitreous degeneration, rhegmatogenous retinal detachment, age-related macular degeneration and diabetic retinopathy. It was widely proven that high oxidative stress damages retina by the acceleration of photoreceptors and ganglion cells apoptosis.

Available data suggesting that substances scavenging oxidative stress may be effective in slowing down the progression of these degenerative ocular diseases. However, the effects of antioxidants treatment are ambiguous, successful results of experimental studies lead straight to clinical use in human in the future.

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