Sudden, painless vision loss due to blockage of a retinal artery or vein describes which condition?

Sudden, painless vision loss due to blockage of a retinal artery or vein describes which condition?

• A. Hyphema
• B. Ocular Migraines
• C. Retinal Vascular Occlusion
• D. Optic Neuritis

Answer: (C)

Sudden, painless vision loss caused by blockage of a retinal artery or vein is retinal vascular occlusion. This refers to occlusion of the retinal circulation, which stops blood flow to the retina and leads to abrupt, painless loss of vision. The two main forms—artery and vein occlusion—have different retinal appearances (artery occlusion often shows a pale retina with a cherry-red fovea, while vein occlusion presents with hemorrhages and edema), but both present without pain. In contrast, hyphema involves bleeding into the anterior chamber and is typically painful; ocular migraines cause transient visual disturbances often with a headache; optic neuritis produces painful vision loss and color-vision changes. So the description fits retinal vascular occlusion best.

Sudden, painless vision loss caused by blockage of a retinal artery or vein is retinal vascular occlusion. This refers to occlusion of the retinal circulation, which stops blood flow to the retina and leads to abrupt, painless loss of vision. The two main forms—artery and vein occlusion—have different retinal appearances (artery occlusion often shows a pale retina with a cherry-red fovea, while vein occlusion presents with hemorrhages and edema), but both present without pain. In contrast, hyphema involves bleeding into the anterior chamber and is typically painful; ocular migraines cause transient visual disturbances often with a headache; optic neuritis produces painful vision loss and color-vision changes. So the description fits retinal vascular occlusion best.