Oxidative Stress Implication in Retinal Diseases-A Review.

Area of Science:

• Ophthalmology and Molecular Biology
• Focus on the intricate interplay between oxidative stress and retinal pathologies.

Background:

• Oxidative stress (OS) arises from an imbalance between free radicals (FRs) and the body's antioxidant capacity.
• Reactive oxygen species (ROS) and reactive nitrogen species (RNS) are key players in cellular chemical reactions.
• The eye's high exposure to UV radiation exacerbates OS, contributing to retinal damage.

Purpose of the Study:

• To review the specific mechanisms of retinal damage induced by ROS and RNS.
• To highlight the role of oxidative and nitrosative stress in the pathogenesis of retinal diseases.
• To underscore the need for targeted therapeutic strategies for retinal pathologies.

Main Methods:

• Comprehensive literature review focusing on oxidative and nitrosative stress in retinal damage.
• Analysis of studies investigating the generation and effects of ROS/RNS in ocular tissues.
• Synthesis of current understanding regarding the link between OS and retinal pathologies.

Main Results:

• ROS and RNS contribute significantly to cellular damage in the retina.
• UV radiation is a major environmental factor increasing OS in the eye.
• Existing research predominantly emphasizes ROS over RNS in disease pathogenesis.

Conclusions:

• A thorough understanding of OS and nitrosative stress is crucial for addressing retinal damage.
• Targeted therapeutic interventions are needed to mitigate ROS/RNS-induced retinal pathologies.
• Further research into the specific roles of RNS in retinal diseases is warranted.