What are retinal Microaneurysms?

Retinal microaneurysms are local disturbances in the diameter of the blood vessels of the retina. Endothelial dysfunction in these microaneurysms can lead to leakage and retinal edema resulting in a progressive loss of vision.

What are retinal hemorrhages?

This includes retinal hemorrhages, which refers to abnormal bleeding within the delicate blood vessels of the retina. When retinal hemorrhages occur, symptoms range from the undetectable to severe vision problems. Vision problems are often temporary, but in some instances, they can be permanent.

How do microaneurysms and dot hemorrhages differ?

Dot and blot hemorrhages occur as microaneurysms rupture in the deeper layers of the retina, such as the inner nuclear and outer plexiform layers. These appear similar to microaneurysms if they are small; fluorescein angiography may be needed to distinguish between the two.

What are microaneurysms?

Microaneurysms are saccular outpouchings of the capillary walls that can leak fluid and result in intraretinal edema and hemorrhages.

What causes retinal Microaneurysms?

Causes. Any type of vascular disease or hypertension can contribute to the development of a retinal microaneurysm, however they have been firmly associated with diabetes. As the first clinically evident sign of diabetic retinopathy, they are regarded as the hallmark of this eye disease.

Are Microaneurysms reversible?

Most microaneurysms are reversible with treatment of your diabetes, high blood pressure or other disorder causing them.

What are the symptoms of retinal hemorrhage?

SYMPTOMS OF RETINAL HEMORRHAGE If you have a retinal hemorrhage, you might experience painless floaters, cobwebs, haze or shadows in one or both eyes, vision loss, red tint to vision or brief flashes of light in the peripheral vision.

Which type of retinal hemorrhages are located superficially in the retina?

Retinal Nerve Fiber Layer (RNFL) Hemorrhages RNFL hemorrhages are superficial and follow the direction, shape, and spread of the RNFL bundles. Three types of hemorrhages are seen at the level of RNFL: flame-shaped hemorrhages, splinter (disc) hemorrhages, and Roth spots.

Are microaneurysms reversible?

Does retinal microaneurysms resolve?

Retinal macroaneurysms may resolve spontaneously by thrombosis, or may be associated with recurrent leakage with retinal and vitreous haemorrhage. Laser photocoagulation may be indicated. Early treatment of Coats’ disease can reduce the extent of visual loss.

Where is the microaneurysm in the retina?

A retinal microaneurysm is a tiny area of blood protruding from an artery or vein in the back of the eye.

Why are retinal hemorrhages a common clinical manifestation?

Retinal hemorrhages are a common clinical manifestation in patients visiting an eye clinic. Retinal hemorrhages give a clue to an underlying systemic disorder or an uncontrolled ocular disorder. The extent, depth, and pattern of distribution of the hemorrhages give us a clue as to what might be the underlying cause.

Can a microaneurysm be a hallmark of NPDR?

Although microaneurysms are occasionally seen in normal aging adults and also occur in other retinal vascular diseases, such as retinal vein occlusion and radiation retinopathy, they are a hallmark of NPDR.

Can a retinal microaneurysm be a reversible condition?

Most microaneurysms are reversible with treatment of your diabetes, high blood pressure or other disorder causing them. A healthy lifestyle and management of diabetes and high blood pressure go a long way to reducing retinal microaneurysms.