The State of Hemodynamics of Retinal Vessels in Primary Open-angle Glaucoma in Patients With Type 2 Diabetes Mellitus

Abstract

Objective: to study the features of linear blood flow rate with central artery and retinal vein calibration in patients with POGC and type 2 diabetes. Examined 220 eyes (110 patients) with type 2 diabetes and 40 eyes (20 patients) with PAH without diabetes. The average age — 58 years old — 0,35. In addition to the common methods of research were: ophthalmoscopy with Goldman lens, binocular ophthalmoscope (Schepevsa), and lens Volk-90,0D (USA), gonioscopy with lenses (Krasnova, Goldman), tonometry by Maccov, NIidek (Japan) pneumototometry NT-2000, simplified tonography for Nesterov, OCT optical nerve disc and yellow spot Carl Zeiss Cirrus, HD OCT Model 4000/5000 Germany), OCT retinal vessels with calibre meter (Cirrus HD-Octiss Ultrasonic), Carl Ultrasonic (ISS) Central artery vessels and retinal veins (UZ — expert class system Sono Scapesq), ultrasound of the eyes. The data are processed statistically. In patients with PSA with SD 2 type of LSC reduction in the CAC at the initial and advanced stages up to 12.5 0.66 cm/s and 11 0.46 cm/s, with blood flow slowing in the CNS-LCC vessels 8.0.5 cm/s and 9.0 0.52 cm/s. In addition, the vascular calibre of the CAC increased to 91.5 0.67 μm and 93.5 0.65 μm at the initial and advanced stages of glaucoma, and the vascular size of the CAC was reduced to -97.6 0.19 μm at 75% and 93.5 0.9 μm at 50%, respectively, and expanded to 141.5 0.7%,7%. Revealed microcirculatory disorders in retinal vessels at POGC with type 2 diabetes allow recommending patients to conduct adequate therapy.