A member asked:

Please help! what is the effect of blood sugar level on eye refraction index?

A doctor has provided 1 answer
Dr. Tim Conrad answered

Specializes in Ophthalmology

Increases: High blood sugars cause the lens to swell making it bend light more. This causes a shift in the glasses prescription toward more nearsighted. This process reverses when the blood sugars normalize.

Answered 1/27/2014

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