Hi @Jim Lahey, I would just like to point out that in T1D, at the beginning when insulin levels are very low indeed, glucose in high levels in the blood diffuses across into the lenses of the eyes. Insulin is not assisting it to get there, the high BSL is.Yes, rapid changes in blood glucose concentration can affect visual acuity, as well as the health of the retina and macular. A regular eye exam by an optician should be effective at highlighting any potential problems with your eye health.
There’s also another less understood factor to consider which is that it’s not all about the blood glucose. Insulin pushes the glucose out of the blood elsewhere, including tissues, organs and eyes. In your position I feel it would be wise to visit an optometrist or ophthalmologist.
You are probably fine, but for the sake of a trip to an opticians it’s better to be sure.
Hi @Jim Lahey, I would just like to point out that in T1D, at the beginning when insulin levels are very low indeed, glucose in high levels in the blood diffuses across into the lenses of the eyes. Insulin is not assisting it to get there, the high BSL is.
The vision is adjusted by the eye muscles and the brain to try to counter the resultant blurriness to a degree in this high sugar state.
Insulin by injection then starts to reduce BSLs. The high level in the blood lowers and glucose starts to move back out of the lenses of the eyes. The eye muscles and brain take time to accomodate this change so the blurriness may change but not immediately.
In ? 3 to 4 weeks provided reasonable control of BSLs is achieved the glucose in the lenses is now stable and at a normal level, and eye muscles and brain have fully adapted to this state.
I can understand your reasoning and usually that would be the case. It seems that the lenses of the eyes are more forms of fibrous tissue that 'go with the flow' fluctuating directly with the BSL. As far as I know the lens does not need to burn sugar or other fuel.Interesting. Thanks. I didn’t know that. OP is type 2 though so is insulin resistant. In this case I feel that exogenous insulin can only be pushing more glucose out of the blood elsewhere
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