Waiting for Symptoms? How the Retina Can Reveal Blood Sugar Problems Before You Notice Anything

https://www.scribd.com/document/980145985/When-Clear-Vision-Hides-a-Dangerous-Problem-Emma-s-Story-of-Optic-Nerve-Swelling-135522

When Emma's Blurry Lines Led to a Surprising Diagnosis Emma was 48, busy, and felt fine. She had gained a few pounds over the last year and blamed it on long hours at work and family dinners