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Classification of arteriosclerotic retinopathy

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Grade 1: consists of a broadening of the arteriolar light reflex and concealment of the veins. The light reflex appears yellow - normal; it's enhancement can be misleading and should not be overemphasised.

Grade 2: grade 1 plus deflection of the veins at arteriovenous crossings.

Grade 3: grade 2 plus "copper wire" arterioles and marked arteriovenous crossing changes - banking of the vein where it appears distal to the crossing; tapering of the vein on either side of the crossing; and right-angled deflection of veins.

Grade 4: grade 3 changes plus "silver wire" arterioles and at times, occlusion of an arteriolar branch

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The content herein is provided for informational purposes and does not replace the need to apply professional clinical judgement when diagnosing or treating any medical condition. A licensed medical practitioner should be consulted for diagnosis and treatment of any and all medical conditions.

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