If you have poor eyesight, a sudden improvement could be a warning sign of diabetes, the UK's Daily Express reports.
High blood sugar causes fluid levels in the eyes to change, and these fluctuations can impact eyesight.
So if your eyesight suddenly seems to be getting better, you should consult a doctor.
More common symptoms of type 2 diabetes are numb feet or hands, endless trips to the bathroom, or insatiable thirst.
But if you don't have those symptoms, the article warns, you may not be out of the woods.
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