The Eye Bleeds Before You Know It
Diabetes does not attack the eye the way an infection does, with pain, redness, and urgency. It works on the tiny blood vessels at the back of the eye, the retina, over months and years. High blood sugar makes those vessel walls weak and leaky. They bulge into microaneurysms, seep fluid into retinal tissue, and eventually rupture. Through all of this, the person sees nothing unusual. The retina has no pain receptors. There is no signal to send.
