Application of Hydrogen in Ophthalmology

Area of Science:

• Ophthalmology
• Medical Research
• Biomedical Engineering

Background:

• Oxidative stress significantly contributes to tissue damage in various ophthalmological conditions.
• Retinal ischemia-reperfusion injury and corneal damage (alkali, UVB) are major causes of vision impairment.
• Cataract surgery, specifically phacoemulsification, can induce oxidative stress and damage corneal endothelium.

Purpose of the Study:

• To review the therapeutic applications of hydrogen (H2) in ophthalmology.
• To investigate the protective mechanisms of H2 against oxidative damage in ocular tissues.
• To evaluate the efficacy of H2 in preventing complications during ophthalmic procedures.

Main Methods:

• Review of existing scientific literature on H2 in ophthalmology.
• Analysis of studies investigating H2 effects on retinal ischemia-reperfusion injury models.
• Examination of H2's role in mitigating corneal damage from chemical or radiation insults.
• Assessment of H2's impact on corneal endothelial cells during phacoemulsification surgery.

Main Results:

• Hydrogen demonstrates significant potential in reducing retinal tissue damage, particularly in ischemia-reperfusion injury.
• H2 treatment effectively suppresses scar formation in alkali- or UVB-induced corneal damage.
• During phacoemulsification, H2 dissolved in irrigation solution markedly reduces corneal endothelial cell damage.
• H2 acts as a direct antioxidant, scavenging hydroxyl radicals (·OH) generated by ultrasound cavitation.

Conclusions:

• Hydrogen (H2) offers remarkable therapeutic benefits across various ophthalmological applications.
• H2 effectively mitigates oxidative stress-induced damage in retinal and corneal tissues.
• The use of H2 in ophthalmic irrigation solutions presents a novel and effective strategy to protect the corneal endothelium during cataract surgery.