The short explanation
Yes, it really is needed. Diabetes can damage the small blood vessels of the retina, the light-sensitive layer at the back of the eye. This is called diabetic retinopathy, and in its early stages it causes no symptoms at all. Many people have perfect vision even while changes are developing, and by the time vision becomes blurred, the damage can be more advanced and harder to treat. A yearly dilated eye examination or retinal photograph can pick up early changes when treatment is most effective at protecting sight. That is why your doctor recommends it even though you see well. It is one of the most useful checks for anyone with diabetes.
What depends on your situation
The parts of this that change from woman to woman. Uncertainty is stated, not hidden.
- The risk goes up the longer you have had diabetes, and with high blood sugar, high blood pressure, high cholesterol, kidney disease, smoking and pregnancy.
- Good control of sugar, blood pressure and cholesterol lowers the risk of eye damage.
- Diabetes also increases the risk of cataract and glaucoma, which the eye doctor checks at the same visit.
- Many government hospitals and screening camps offer retinal checks at low or no cost.
What this answer cannot determine
The boundary of online education. These need a clinician who can see you.
- This cannot tell you whether your retina is affected. Only a dilated eye examination or retinal photograph can show that.
Questions for your clinician
Take these with you. You can add any of them to an appointment card.
- Are there any signs of diabetic changes in my retina?
- How often should I have my eyes checked?
- Is my blood sugar and blood pressure control good enough for my eyes?
- What symptoms should make me come sooner?
When to seek help
Clinician-approved guidance for this topic. When in doubt, being seen is never the wrong choice.
Emergency — call 112 now
- Call 112 or go to an emergency eye service if you suddenly lose vision, or see a shower of floaters or a curtain over your vision.
Book an appointment soon
- See an eye doctor within a few days if your vision becomes blurred, distorted, or you notice dark spots.
Raise it at a routine appointment
- Book a routine dilated retina check every year, or as often as your doctor advises.
Sources
The evidence this explanation is built on.
- Diabetic eye problems MedlinePlus (NIH)
- Get a dilated eye exam National Eye Institute (NIH)
- Vision impairment and blindness MedlinePlus (US National Library of Medicine)
Who wrote and reviewed this
Every AskHer answer names its author. A clinically reviewed answer also names the clinician who signed it off — if no clinician is named below, it has not been clinically reviewed.
- Author
- AskHer Editorial (AI-assisted draft) AskHer's editorial team — not an individual clinician Works in English, தமிழ், हिन्दी
- Clinical reviewer
- Nobody yet No clinician has signed this answer off, and no person on the editorial team has read it yet. That is what the “Written with AI assistance” label means. It is queued for an editor to read, and then for a clinician who works in this area. The sources it was drafted against are listed above.
- Review status
- Written with AI assistance — not yet reviewed by a person
- Last reviewed
- Not yet reviewed by a person
- Version
- 1
Correction history
Substantive changes are listed, not quietly edited away.
No corrections have been made since this answer was first published.
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