METHOD OF DIFFERENTIAL DIAGNOSIS OF TRANSIENT AND DIABETIC RETINOPATHY IN PREGNANT WOMEN WITH TYPE 1 DIABETES MELLITUS Russian patent published in 2023 - IPC A61B3/12 A61F9/00 

FIELD: medicine; ophthalmology.

SUBSTANCE: retinal blood flow is studied by optical coherence tomography in angiography mode (OCT angiography). If a pregnant woman with type 1 diabetes mellitus has retinal changes in the form of “cotton-like foci”, retinal hemorrhages, microaneurysms, zones of intraretinal microvascular anomalies, then in each of the trimesters, starting from the first, OCT angiography is performed in the superficial and deep retinal vascular plexus and with an increase in the total area of nonperfusion zones in the posterior pole by 10% or more and/or a decrease in the relative density of vessels by 10% or more and/or a decrease in the foveal density of vessels by 10% or more, compared with the previous study, diabetic retinopathy is diagnosed. In the absence of such changes, a diagnosis of transient retinopathy is established.

EFFECT: method allows to objectively non-invasively and safely carry out differential diagnostics of transient retinopathy and diabetic retinopathy in pregnant women with type 1 diabetes mellitus to determine further patient management tactics and timely determination of indications for retinal laser photocoagulation.

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