Diabetes may trigger vision loss in extreme cases(Image: Getty Images)

The little-known eye problem that could be sign you have diabetes

Anyone with either type one or type two diabetes is at risk of this eye problem which is one of the leading causes of blindness

by · The Mirror

Excessive thirst, frequent urination and fatigue are perhaps among the most well-known symptoms of diabetes. But did you know it can trigger changes to your eyesight as well?

Ophthalmologist Cindy Cai of The John Hopkins Hospital has drawn attention to a largely overlooked eye problem that may result from the common condition, at a time when it's the 'leading cause of blindness in American adults'. "We have great treatments for diabetic retinopathy," Cai explained in an online blog.

"However, it is important to get regular eye examinations so that your doctor can offer you these treatments as soon as you might need them." Diabetic retinopathy is a complication of diabetes, driven by unchecked blood sugar levels in the back of the eye.

Diabetic retinopathy may be influenced by high cholesterol or blood pressure( Image: Getty Images)

Over time, this may damage the retina - a layer of photoreceptors crucial to our vision - with the potential to cause blindness if left undiagnosed. Crucially, the NHS asserts that it would take 'several years for diabetic retinopathy to reach a stage where it could threaten your sight', though it's important to get this treated.

The health body summarises: "The retina is the light-sensitive layer of cells at the back of the eye that converts light into electrical signals. The signals are sent to the brain which turns them into the images you see. The retina needs a constant supply of blood, which it receives through a network of tiny blood vessels.

"Over time, a persistently high blood sugar level can damage these blood vessels in three main stages[...] However, if a problem with your eyes is picked up early, lifestyle changes and treatment can stop it getting worse."

Going for eye tests and checking blood pressure is crucial to minimising your risk of diabetic retinopathy( Image: Getty Images)

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In light of this Cai stressed the importance of getting your eyes checked regularly, while seeking out ways to slash your blood pressure and cholesterol. An avoidance of smoking can help too.

She added: "In addition to getting your eyes checked, it’s also very important to keep the blood sugars under control. This is not only good for you overall, but also good for your eyes."

Are you at risk of diabetic retinopathy? The NHS guidance is outlined below

People with either type one or type two diabetes are potentially at risk of developing this condition. This risk is exacerbated if you've:

  • Have/had high blood pressure for a long time
  • Have high cholesterol
  • Are pregnant
  • Have had diabetes for a long time
  • Are pregnant
  • Are of Asian or Afro-Caribbean background