Hypertensive retinopathy?

Hypertensive retinopathy?
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DefinitionHypertensive retinopathy is damage to the back part of the eye (retina) caused by high blood pressure.Causes, incidence, and risk factorsHigh blood pressure can cause damage to blood vessels in the eyes. The higher the blood pressure and the longer it has been high, the more severe the damage is likely to be.Your health care provider can see narrowing of blood vessels, and excess fluid oozing from blood vessels, with an instrument called an ophthalmoscope. The degree of retina damage (retinopathy) is graded on a scale of 1 to 4.At grade 1, no symptoms may be present. Grade 4 hypertensive retinopathy includes swelling of the optic nerve and of the visual center of the retina (macula). Such swelling can cause decreased vision.Other retinopathies that are known complications of high
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