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Retinal Hemorrhages

Shape Mechanism Common Associated Conditions
Dot Hemorrhage Rupture of deep capillaries Diabetes
Flame Hemorrhage Rupture of superficial pre-capillary arterioles, small veins Systemic hypertension, leukemia, severe anemia, thrombocytopenia, retinal vein occlusion, trauma
Boat Hemorrhage Rupture of large superficial retinal veins into the space between the retina and vitreous; sometimes these bleeds break into the vitreous cavity Sudden increase in intracranial pressure, anemia, thrombocytopenia, trauma
Submacular Hemorrhage Rupture of choroidal vessels under the fovea Age-related macular degeneration
Vitreous Hemorrhage Rupture of superficial retinal vessels or vessels on a fibrovascular stalk extending into the vitreous Proliferative diabetic retinopathy, hypertension, trauma
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