Purpose: We studied the choroidal circulation in patients with proliferative diabetic retinopathy (PDR) to assess whether choroidal hemodynamic abnormalities may exist in PDR.
Methods: Eighteen eyes of 18 patients with PDR and high-risk characteristics for visual loss were included in this study. Mean duration of diabetes was 20 +/- 9 years (mean +/- SD), hemoglobin A1c was 8.