Optical Coherence Tomography Angiography Evaluation of Retinochoroidal Microvascular Circulation Differences in Pregnant Women with Pregestational and Gestational Diabetes Mellitus.

Purpose: In this study, the changes in microvascular circulation caused by pregestational and gestational diabetes were observed, without focusing on retinal findings, to reveal the effect of diabetes regulation.

Methods: A total of 135 subjects were included: 30 with gestational diabetes (GDM), 30 pregestational diabetes (PGDM), 30 healthy pregnant normoglycemic subjects, and 45 healthy non-pregnant subjects. All subjects were examined by optical coherence tomography (OCT) and angiography.