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Study Links Diabetic Retinopathy with Time in Range

Retina Associates

Retina Associates of Tucson, Arizona, offers high-quality care for diabetic retinopathy and other retinal disorders. At Retina Associates, Dr. Cameron Javid and his colleagues draw on the latest discoveries in retinal medicine.

In late 2018, the journal Diabetes Care published findings that connect the development of diabetic retinopathy to time in range. These findings arose from an analysis of the medical records of more than 3,200 patients, all of whom had type 2 diabetes.

The researchers found that those patients who had the most advanced cases of diabetic retinopathy had notably less time in range. The field of endocrinology defines “time in range” as the percentage of a patient's 24-hour day spent with glucose levels between 3.9 and 10.0 millimoles per liter.
Patients with less time in range had not only more severe cases of diabetic retinopathy but also higher levels of glycemic variability. Findings remained consistent across patient populations with different levels of diabetic retinopathy, meaning the severity of retinopathy decreased proportionally to increased time in range.

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