Regular dilated eye exams help find diabetes-related eye disease before vision changes are obvious.
Quick summary
Your eyes may feel fine even when early diabetic retinopathy, glaucoma, cataracts, or macular edema is developing.
Key takeaways
- Many people with diabetes need a dilated eye exam at least once a year, but timing can vary by diabetes type, pregnancy, prior eye findings, and clinician advice.
- Dilation helps the eye doctor see the retina and other inner eye structures.
- Some people need more frequent follow-up when retinopathy or macular edema is present.
- Pregnancy with pre-existing diabetes can require special eye follow-up.
What the exam may include
Exam components vary by clinic, symptoms, and findings. A diabetes eye exam may include several checks, and glaucoma evaluation may require tests beyond dilation alone.
- Vision testing.
- Eye pressure check.
- Dilating drops.
- Retina and optic nerve exam.
- Photos or scans when needed.
Plan ahead
Dilation can make vision blurry and increase light sensitivity for a few hours. Bring sunglasses and ask whether you should have someone drive you.
Do not skip the exam because your glucose numbers look acceptable or because you have no symptoms. Eye disease prevention depends on both diabetes care and early detection.
Practical takeaway
A regular eye exam is a practical way to find treatable eye disease early and protect long-term vision.
Safety note
This article is not a substitute for medical care. Seek urgent eye care between routine exams for sudden vision loss, flashes, many new floaters, a curtain over vision, severe pain, or rapidly worsening symptoms.
What to ask your care team
- How often do I need a dilated exam?
- Were any signs of retinopathy, macular edema, cataract, or glaucoma found?
- Should I return sooner than one year?
Related reading
Source summary
- Get a Dilated Eye Exam, National Eye Institute. Patient guidance. Accessed June 5, 2026. Source
- Diabetic Eye Disease, National Institute of Diabetes and Digestive and Kidney Diseases. Patient guidance. Accessed June 5, 2026. Source
- Promoting Eye Health, Centers for Disease Control and Prevention. Clinical guidance. Accessed June 5, 2026. Source
- Vision Loss and Diabetes, Centers for Disease Control and Prevention. Patient guidance. Accessed June 5, 2026. Source