2024年4月19日 · A retinal artery occlusion is a blockage in one of the blood vessels that supplies your retina with blood. It usually occurs suddenly and can cause vision loss without causing pain.

2023年6月19日 · Retinal vein occlusion (RVO) is a blockage in a small blood vessel that carries blood away from your retina. Symptoms include blurry vision or vision loss in one eye, which may develop suddenly. RVO can lead to serious complications like swelling or bleeding in your eye.

2024年10月9日 · Retinal vein occlusion is usually caused by a blood clot blocking the vein. But a nearby artery can sometimes be the problem. Arteries and veins cross over each other in the retina....

2024年11月11日 · If a blood clot or cholesterol builds up and blocks blood flow in one or more of your retina’s arteries, it is called a retinal artery occlusion (RAO). This is like having a stroke (when blood flow to the brain is cut off), but in your eye instead of your brain.

2024年11月11日 · When a vein in your retina is blocked (occluded), it is called a retinal vein occlusion. This can be caused by a blood clot. Or it can happen when a larger blood vessel presses down on the vein. With retinal vein occlusion, the blood vessels may become weaker and start to leak, which causes the macula to swell or thicken.

A symptomatic retinal artery occlusion is an ophthalmic emergency that requires immediate evaluation and transfer to a stroke center. It is an obstruction of retinal blood flow that may be due to an embolus causing occlusion or thrombus formation, vasculitis causing retinal vasculature inflammation, traumatic vessel wall damage, or spasm.

2023年10月4日 · Retinal vascular occlusion (RVO) occurs when small veins in the back of the eye become blocked, and blood cannot flow through them. The condition can affect vision but does not cause total...

2023年9月1日 · Like a stroke in the brain, this happens when blood flow is blocked in the retina, a thin layer of tissue in the eye that helps you see. It can cause blurry vision and even blindness. Arteries...

4 天之前 · Retinal vein occlusion (RVO) is the second most common vascular disease of the retina after diabetic retinopathy, with a growing global burden. In 2008, an estimated 16.4 million people were affected worldwide, increasing to 28.06 million by 2013. Of these cases, 23.38 million involved branch retinal vein occlusion (BRVO), while 4.67 million ...

A retinal vein occlusion causes a dimming or blurring of all or part of your sight in one eye. This usually happens over a period of hours or days. If you experience any change in your vision you should have your eyes examined as soon as possible.