OCT Angiography Provides Vivid Pictures of Nonproliferative Diabetic Retinopathy Severity
OCTOBER 16, 2016
The study looked at 60 normal eyes, 36 with mild NDPR, 21 with moderate NDPR, 13 with severe NDPR, and 32 eyes that had both NDPR and diabetic macular edema (DME). Excluded from the study were those with glaucoma or cataract. The imaging allowed them to observe deep perifoveal vessel density with a great degree of detail. All imaging was administered by a single, experienced OCT-A operator.
When deep capillary macular vascular flow was observed and graphed, results displayed a very sharp linear decline as the seriousness of NDPR increased, with a six fold drop in density from normal eye to severe NDPR.
The study showed the specificity and effectiveness with which OCT-A can express the seriousness of NDPR. Towards the conclusion of his presentation, Chalam suggested that the technology may be of clinical use in assessing the severity of NDPR that would otherwise go unnoticed, or perhaps as a way of tracking the progress of treatments.
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