Warning signs of advanced diabetic retinopathy often appear once the retina is already under significant strain. Recognising them early helps protect remaining vision.
Changes you might notice
Vision problems may come on gradually or suddenly. Any new symptom in someone with diabetes should prompt a prompt eye review.
- Blurred or patchy central vision that affects reading or driving
- Sudden shower of floaters or dark spots suggesting bleeding
- Wavy or distorted lines, especially on straight objects
- Dark curtain or shadow moving across part of the visual field
When to seek urgent help
Advanced disease can involve new blood vessels, bleeding, or retinal detachment. Quick treatment greatly improves outcomes.
- Contact emergency eye services if vision drops quickly or pain develops
- Attend all screening appointments even if sight seems normal
- Keep blood sugar, blood pressure, and cholesterol well controlled
- Ask your team about laser or injection treatments if advised
