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Diabetic Retinopathy

2012-09-19 17:41

Diabetic Retinopathy is a complication of Diabetes and a leading cause of blindness. It occurs when Diabetes impair retina, the light sensitive lining at the back of eyes. With Diabetic Retinopathy, at first there may be no symptoms in the patients. However, over time, the disease may get worse and result in vision loss. Early detection and timely management are essential tools to prevent or delay deterioration of Diabetic Retinopathy.

Developing stages of Diabetic Retinopathy mainly include the follows:

Mild Nonproliferative Retinopathy

Microaneurysms may occur in this earliest stage. Microanerysms refer to small amounts of swelling on retina, which may cause small retinal swellings.

Moderate Nonproliferative Retinopathy

Blocks in retinal blood vessels may occur. Blood vessels are crucial for the eyes in that they transport oxygen and nutrients to retina. In this stage, some blood vessels on retina are blocked.

Severe Nonproliferative Retinopathy

In this stage, many more blood vessels are blocked, cutting off blood and nutrient to several areas of retinal blood vessels. Signals released by those blocked blood vessels for nourishment will cause growth of new blood vessels.

Proliferative Retinopathy

In this advanced stages, severe blockage of retinal blood vessels will trigger growth of new blood vessels. The new blood vessels are abnormal and quite fragile. The new blood vessels can grow on or along the surface of the clear gel that fills the inside of the eyes. The blood vessels themselves don’t cause symptoms. However, they have thin and fragile walls. Vision loss may happen if those blood vessels leak blood.

At most of the time, there are no symptoms of diabetic retinopathy until it starts to change your vision. Signs which may indicate severe eye damage mainly include pains in the eyes, blurry vision, new vision loss, floaters, etc. Diabetics need to have their eyes checked regularly, and in case any symptom occurs, call an eye doctor right away.

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