Eye Emergencies in the Elderly - Part 2

Sudden painless vision loss in the elderly often stems from vascular insults, specifically central retinal artery occlusions (CRAO) or central retinal vein occlusions (CRVO). CRAO presents with a characteristic cherry-red spot on the macula due to axoplasmic stasis, while CRVO manifests as a "blood and thunder" appearance with extensive intraretinal hemorrhages. Management prioritizes identifying underlying systemic etiologies like carotid stenosis or hypercoagulable states rather than relying on anecdotal ocular massage. For chemical ocular burns, immediate and copious irrigation remains the definitive treatment to neutralize pH, followed by topical antibiotics and cycloplegics to manage pain and prevent secondary infection. While cataracts cause gradual, indolent vision loss, clinicians can differentiate them from other pathologies using red reflex assessment and pinhole testing. Dr. Bryan Hong emphasizes that when diagnostic uncertainty arises, timely consultation with an ophthalmologist is essential to prevent permanent vision loss.