Does diabetes cause blindness

Diabetes can cause blindness.

Sustained hyperglycemia can cause damage to the microvessels in the eye, especially the tiny blood vessels in the retina. These vessels become fragile, prone to leakage and abnormal proliferation, affecting the normal function of the retina. The initial symptoms may not be obvious, but as the disease progresses, blurred vision, dark shadows, etc., if not promptly intervened, may eventually lead to blindness

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