Early increase of arterial blood flow velocities at Orbital Color-Doppler Ultrasound (OCDUS) in brittle Type-1 Diabetes after Pancreatic Islet Transplantation (PIT) was recently demonstrated. However few knowledge is available about the role of PIT in the retinal microcirculation and the evolution of Diabetic Retinopathy (DR), that is the major cause of visual loss in type-1 diabetic patients. We retrospectively studied 8 patients affected by Type-1 Diabetes with OCDUS and Spectral-Domain Optical Coherence Tomography (SDOCT), in order to investigate retinal blood flow and morphological...