In brief
The retina is the light-sensitive layer at the back of the eye. Diseases of the retina, such as diabetic retinopathy, age-related macular degeneration and retinal detachment, can threaten sight and often need prompt care.
This information is general and does not replace an eye examination or advice from an eye-care professional. If you have a problem with your eyes or vision, please see an optometrist or ophthalmologist.
Common retinal conditions
- Diabetic retinopathy: damage to the retinal blood vessels caused by diabetes.
- Age-related macular degeneration: loss of sharp central vision with age.
- Retinal tear or detachment: the retina pulls away from the back of the eye.
- Retinal vein or artery blockage: reduced blood supply to the retina.
Seek urgent care if you notice
- A sudden shower of new floaters.
- Flashes of light.
- A dark curtain or shadow across part of your vision.
- Sudden loss or distortion of vision.
If you have diabetes
Diabetic retinopathy can progress without symptoms. People with diabetes are advised to have a dilated retinal examination regularly, commonly at least once a year, and to keep blood sugar, blood pressure and cholesterol under control.
Looking after your retina
- Do not skip eye examinations, especially if you are over 50 or have diabetes or high blood pressure.
- Do not smoke.
- Eat a balanced diet rich in vegetables.
- Protect your eyes from injury.
Frequently asked questions
What are the warning signs of a retinal detachment?
Sudden new floaters, flashes of light and a shadow or curtain across your vision. These need urgent attention from an eye specialist.
How often should people with diabetes have their eyes examined?
Commonly at least once a year, but your doctor or eye-care professional will advise the right interval for you.
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