In my recent research, I've discovered a surprising connection between eye redness and diabetes. It turns out, persistent redness may be a symptom of diabetic retinopathy, a complication of diabetes affecting the eyes. This condition happens when high blood sugar levels cause damage to blood vessels in the retina. If ignored, it can lead to serious vision problems or even blindness. So, if you're a diabetic experiencing consistent eye redness, it's crucial to consult with an eye specialist as soon as possible.