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Type 2 diabetes symptoms: Five warning signs of high blood sugar in your eyes


Type 2 diabetes signals your pancreas is not producing enough insulin or the insulin it does produce is severely hampered. Insulin is a hormone that regulates blood sugar – the main type of sugar you get from eating food. High blood sugar levels can wreak havoc upon the body and its destructive effects make up the symptoms of type 2 diabetes.

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.

How to respond

Symptoms of high blood sugar, such as eye problems, are a telltale sign of undiagnosed diabetes, so you should see a GP if this applies to you, the NHS advises.

“You’ll need a blood test, which you may have to go to your local health centre for if it cannot be done at your GP surgery,” explains the health body.

The earlier diabetes is diagnosed and treatment started, the better.

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As the NHS points out, early treatment reduces your risk of other health problems.

What happens next

Following a formal diagnosis, you’ll usually be recommended lifestyle changes to stabilise your blood sugar levels.

Controlling your blood sugar levels relies on two key strategies – improving your diet and upping your physical activity.

Take diet first. There’s nothing you cannot eat if you have type 2 diabetes, but you’ll have to limit certain foods.

Low or medium GI foods are broken down more slowly and cause a gradual rise in blood sugar levels over time.

They include:

  • Some fruit and vegetables
  • Pulses
  • Wholegrain foods, such as porridge oats.

How does exercise lower blood sugar?

As the Mayo Clinic explains, exercise draws on reserve sugar stored in your muscles and liver.

“As your body rebuilds these stores, it takes sugar from your blood.”


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