Ischemic maculopathy at the preproliferative stage of diabetic retinopathy: epidemiology, clinical presentation, and diagnosis
Ogneva T.R.1, Tultseva S.N.1
1Federal State Budgetary Educational Institution of Higher Education “Academician I.P. Pavlov First St. Petersburg State Medical University” of the Ministry of Healthcare of Russian Federation
Brief summary
This literature review is devoted to one of the most challenging forms of retinal damage in diabetes mellitus—ischemic maculopathy. The article systematizes current data on the pathophysiological mechanisms underlying macular ischemia, including the role of microcirculatory disturbances, endothelial dysfunction, and neurodegeneration. Particular attention is given to the evolution of imaging methods, namely the transition from fluorescein angiography to optical coherence tomography angiography, which makes it possible to accurately delineate the foveal avascular zone and assess capillary density in the various retinal vascular plexuses.
The paper reviews existing classifications of ischemic changes and discusses their prognostic significance for the preservation of visual function. It also addresses the challenges of diagnosing ischemic maculopathy in the presence of macular edema, as well as the limitations of current treatment options in cases of severe perfusion deficit. The review highlights the need to develop standardized criteria for the assessment of ischemic maculopathy to support a personalized approach to the management of patients with diabetic retinopathy.
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