OCTA and Functional Signs of Preclinical Retinopathy in Type 1 Diabetes Mellitus.

Background And Objective: There is an emerging role for optical coherence tomography angiography (OCTA) in detecting microvasculature changes in diabetic retinopathy (DR). This study aimed to investigate visual functions and OCTA parameters of retinal and choriocapillaris (CC) flow in patients with type 1 diabetes mellitus (T1DM) without apparent DR.

Patients And Methods: Patients and age-matched healthy volunteers were enrolled.