How High Sugar Levels Harm Eye Health High Blood sugar caused by diabetes can impact several body parts, including the eyes. Uncontrolled blood sugar can silently harm vision and may result in blindness if not treated on time. Learning how diabetes affects the eyes can help you take early steps https://app.gitbook.com/o/hD2DegYzxLZWkk72DThf/s/vMvYe8v3ii7NvXbTwskW/