Retinal Microvascular Density and Perfusion during an Insulin-Induced Hypoglycemia Episode: A Warning Call

Figure 1

3.0 × 3.0 mm mode OCTA images of retinal perfusion changes. (a–c) SCP retinal perfusion in control patients. (d–f) SCP before, during, and after hypoglycemia in DM without DR. (g–i) SCP retinal perfusion in before, during, and after hypoglycemia in DM with DR. SCP: superficial capillary plexus; DM: diabetes mellitus; DR: diabetic retinopathy. (a) SCP: Total Perf 37.4%, (b) SCP: Total Perf 36.5%, (c) SCP: Total Perf 36.8%, (d) SCP: Total Perf 37.1%, (e) SCP: Total Perf 34.2%, (f) SCP: Total Perf 36.7%, (g) SCP: Total Perf 32.7%, (h) SCP: Total Perf 27.6%, and (i) SCP: Total Perf 28.7%.