High blood pressure: Many conditions can cause microaneurysms in the retina. Diabetes is most common followed by high blood pressure. Less common is from poor circulation to the eye (from carotid artery occlusive disease) and even more rare is previous radiation to the head and neck. Retinal occlusive disease, brannch and central retinal vein occlusions, which are associated with high blood pressure are also common.
Answered 1/2/2018
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