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Type 2 diabetes: The six different symptoms found in the eyes warning of high blood sugar

Type 2 diabetes is a lifelong condition that causes a person’s blood sugar level to become too high. Blood sugar levels rise due to a dysfunction in the way insulin, a hormone that regulates high blood sugar, is released. If the pancreas does not produce enough insulin or the body’s cells do not react to insulin, blood sugar levels have free rein, and this could cause a harrowing effect to one’s eyes. Experiencing any of these six signs in your eyes could mean your blood sugar levels are too high.

According to Mayo Clinic, symptoms of chronic high blood sugar levels can show up in the eyes when blood sugar damages the blood vessels of the light-sensitive tissue at the back of the eye (retina).

This is known as diabetic retinopathy.

As the health site explains, you might not have symptoms in the early stages of diabetic retinopathy.

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As the condition progresses, diabetic retinopathy symptoms may include:

  • Spots or dark strings floating in your vision (floaters)
  • Blurred vision
  • Fluctuating vision
  • Impaired colour vision
  • Dark or empty areas in your vision
  • Vision loss

“Diabetic retinopathy usually affects both eyes,” it adds.

According to the NHS, these symptoms don’t necessarily mean you have diabetic retinopathy, but it’s important to get them checked out.

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Blurred vision is one of the earliest warning signs of diabetes, warned Specsavers’ clinical spokesman, Dr Nigel Best.

Those most at risk are people whose vision swaps between blurry and perfectly normal.

It’s caused by blood sugar levels being unstable, Best exclusively told Express.co.uk.

“Fluctuating blurred vision is the main symptom people with diabetes get in their eyes,” he said.

“People may find that one day they have blurred vision but another day they can see perfectly fine, this is down to their sugar levels not being stable.”

Blurred vision is also a warning sign of diabetic retinopathy, a complication caused by damage to the blood vessels at the back of the eye.

Diabetic eye disease is a group of eye problems that can affect people with diabetes, said the National Institute of Diabetes and Digestive Kidney Disease.

The site added: “These conditions include diabetic retinopathy, diabetic macular edema, cataracts, and glaucoma.

“Over time, diabetes can cause damage to your eyes that can lead to poor vision or even blindness.

“But you can take steps to prevent diabetic eye disease, or keep it from getting worse, by taking care of your diabetes.

If you have diabetes, you’re at increased risk for a variety of eye problems.

It’s important to have regular check-ups and eye exams.

This should include a comprehensive eye exam with dilation every year.

It’s imperative to tell your doctor about all of your symptoms, as well as all the medications you take.

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