Blurry Vision and Diabetes: What's the Connection?
Blurry vision is being unable to see the fine details.
Another way of describing it is seeing a lack of sharpness. Blurred eyesight is similar to seeing things as if they are in the out-of-focus parts of a photograph.
The blurriness can be subtle or obvious, can change through the day, and can come on slowly or quickly. It depends on the cause.
Diabetes can cause blurry vision for a variety of reasons. Both short-term and long-term complications can affect the vision of someone with diabetes.
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How does diabetes affect the eyes?
Long-term uncontrolled diabetes can lead to high blood sugar levels that cause damage to small blood vessels over time. This damage can lead to problems with part of the eye called the retina which can create blurred vision.
Short-term blurriness in people with diabetes is due to a different cause. Fluid shifts into and out of the eye due to high blood sugar levels, causing the lens of the eye to swell.
This change in its shape causes blurriness as the lens is the part that focuses light onto the back of the eye. This short-term issue will resolve once blood sugar levels are lowered.
Can diabetes treatment cause blurriness?
Diabetes can also cause short-term blurriness if blood sugar levels fall too low (hypoglycemia). This can happen due to the timing of food or a change in activity levels in people who take medication that increases insulin in the body.
Rather than being caused by changes in the eye, blurriness from low blood sugars is caused by the effects of hypoglycemia on the brain. Vision affected in this way will retu Continue reading