What is non ischemic CRVO?
Nonischemic CRVO is the milder form of the disease. It may present with good vision, few retinal hemorrhages and cotton-wool spots, no relative afferent pupillary defect, and good perfusion to the retina. Nonischemic CRVO may resolve fully with good visual outcome or may progress to the ischemic type.
What is the difference between CRVO and BRVO?
A blockage in the retina’s main vein is referred to as a central retinal vein occlusion (CRVO), while a blockage in a smaller vein is called a branch retinal vein occlusion (BRVO).
What does CRVO mean?
Central retinal vein occlusion (CRVO) is a common retinal vascular disorder. Clinically, CRVO presents with variable visual loss; the fundus may show retinal hemorrhages, dilated tortuous retinal veins, cotton-wool spots, macular edema, and optic disc edema.
Why is there Rapd in CRVO?
3. The relative afferent pupillary defect (RAPD) is very helpful in separating the ischemic type from the nonischemic type, during both the early and the late stages of the disease.
How do you distinguish between Ischaemic and non-ischemic CRVO?
Ischemic (pronounced is KEY mick) and Non-ischemic CRVO: CRVO comes in 2 types:
- Non-ischemic CRVO—a milder type characterized by leaky retinal vessels with macular edema.
- Ischemic CRVO—a more severe type with closed-off small retinal blood vessels.
What is the difference between ischemic and nonischemic cardiomyopathy?
Ischemic cardiomyopathy is most common. It occurs when the heart is damaged from heart attacks due to coronary artery disease. Non-ischemic cardiomyopathy is less common. It includes types of cardiomyopathy that are not related to coronary artery disease.
Is BRVO a stroke?
Eye strokes occur when blockages (occlusions) occur in arteries or veins in the retina, causing vision loss.
Is BRVO serious?
Another serious potential problem in BRVO is that of retinal neovascularization. In advanced cases, abnormal blood vessels grow from the retina into the vitreous gel of the eye. Since these vessels are very fragile, this can lead to major bleeding (vitreous hemorrhage) and scar tissue formation.
What is Ischaemic CRVO?
Central retinal vein occlusion, also known as CRVO, is a condition in which the main vein that drains blood from the retina closes off partially or completely. This can cause blurred vision and other problems with the eye.
How does central retinal vein occlusions happen?
Retinal vein occlusion happens when a blood clot blocks the vein. Sometimes it happens because the veins of the eye are too narrow. It is more likely to occur in people with diabetes, and possibly high blood pressure, high cholesterol levels, or other health problems that affect blood flow.