Arterial Insufficiencies: Central Retinal Artery Occlusion

Area of Science:

• Ophthalmology
• Vascular Medicine
• Emergency Medicine

Background:

• Central retinal artery occlusion (CRAO) is a rare but critical ophthalmic emergency.
• It leads to abrupt, painless, and often permanent vision loss.
• High-risk patient groups include those with giant cell arteritis, atherosclerosis, and thromboembolic disorders.

Purpose of the Study:

• To review the limited treatment options for CRAO.
• To highlight the potential efficacy of hyperbaric oxygen therapy (HBO₂) in managing CRAO.

Main Methods:

• Literature review of historical and current treatment modalities for CRAO.
• Analysis of treatment outcomes, focusing on visual recovery and prognostic factors.

Main Results:

• Most treatments for CRAO have demonstrated minimal to no success over the past century.
• Hyperbaric oxygen therapy (HBO₂) has emerged as a notable exception with potential therapeutic benefits.

Conclusions:

• Effective treatments for CRAO remain a significant challenge in ophthalmology.
• HBO₂ warrants further investigation as a viable therapeutic option for patients with CRAO.