How close are doctors to finding cure for Diabeties?

Imy parents are old and every 4 th person I know turned out has diabetes over the age of 45 has it. It worries me and I want to know if a proper cure for Diabetics is coming soon. Like in 3-5 years.

Also I was wondering if someone can explain any cure for Diabetic retinopathy

How close are doctors to finding cure for Diabeties?
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