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Updated: Feb 2, 2026

Application of Optical Coherence Tomography to a Mouse Model of Retinopathy
Published on: January 12, 2022
An Update on Optical Coherence Tomography Angiography in Diabetic Retinopathy
Joobin Khadamy1, Kaveh Abri Aghdam1, Khalil Ghasemi Falavarjani1
1Eye Research Center, Rassoul Akram Hospital, Iran University of Medical Sciences, Tehran, Iran.
Abstract:
Optical coherence tomography angiography (OCTA) is a novel non-invasive imaging modality for 3-dimensional visualization of retinal and optic nerve capillary networks. In this article, a comprehensive review of relevant original articles in the PubMed database was performed using the search terms "diabetic retinopathy," "diabetic macular edema," "diabetes mellitus," and "optical coherence tomography angiography." OCTA was found to detect microvascular changes early in diabetes mellitus, even before they become clinically evident. Morphological and qualitative assessment of vascular changes can help to determine the pathophysiological processes, activity, treatment, and follow-up of diabetic retinopathy (DR). Vessel density and foveal avascular zone are the most investigated quantified indices shown to be early predictors of DR, correlated to DR severity and visual function, and useful in predicting response to treatment. OCTA has shown to be a promising alternative to fluorescein angiography in the management of DR. Further studies are warranted to determine the role of OCTA in the routine clinical management of DR.
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