By Blua | Digital health by Bupa
4 minute read
Published 6 July 2026
Diabetes can affect eye health in a few different ways.
Changes in blood glucose levels can affect the lens of the eye, which may cause temporary changes in vision until levels stabilise.1
Over time, high blood glucose levels can affect the small blood vessels in the eye. This can lead to a condition called diabetic retinopathy.
Diabetic retinopathy can develop without obvious symptoms, which is why regular eye checks are important for early detection and treatment.
People living with diabetes are also at higher risk of glaucoma and cataracts, which can affect vision quality over time.2
Regular eye checks involve several tests that your optometrist may do to check general eye health and vision.
If you live with diabetes the following tests are important.
These tests help pick up changes early, often before you notice any symptoms.
Most people living with diabetes should have regular eye checks1, usually at least every 1 to 2 years. Your optometrist or healthcare team may recommend more frequent checks depending on your individual situation.
If you have been newly diagnosed with diabetes, it’s recommended to get an eye check and let your optometrist know about the condition.
If you live with diabetes and become pregnant, it is recommended that you have more regular eye checks during pregnancy, as recommended by your healthcare team.
Depending on the type of diabetes and how well your condition is managed your doctor may recommend more frequent testing. Always defer to your doctor’s advice and guidance.
There are simple things that can support your eye health alongside diabetes care:
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1 Diabetes Australia. (n.d.). Your eye health and diabetes.
2 Cleveland Clinic. (2024). Glaucoma. And Mrugacz, M., Pony-Uram, M., Bryl, A., & Zorena, K. (2023). Current approach to the pathogenesis of diabetic cataracts. International journal of molecular sciences, 24(7), 6317.
3 Health Direct. (2024). Eye tests.