Abstract:

Purpose: The purpose of this study is to evaluate the optical disk and macula structure and vascular dancithin in patients with polystemia vera (PV) with optical coherence tomography (OKT-A) and to compare it with healthy controls. The study compared 24 eyes of 12 PV patients of the same age and gender with 34 eyes of 17 healthy participants. The 4.5 mm X 4.5 mm area in the optical disk and the 6 mm X 6 mm area in the scanner were taken with the OKT-A images with AngioVue. The thickness of the retinal nerve fibre layer (RSLT); the radial peripapillal capillary vascular dancity; the central makula thickness; the macular surface, deep and coryocapillal plexus vascular dancity, the foveal avascular zone and the asicularity index measurements were compared. Results: in PV patients, the RSLT was significantly reduced compared to the superior and temporalde control group (secondly 126.83 ± 16.76 & 138.94 ± 14.02 p= 0.004; 69.62 ± 10.15 & 76.94 ± 10.15 p = 0.009). Peripapillary capillary vascular dancity was significantly reduced in PV throughout the image, peripapillary and superior peripapillary area (48.50± 2.80 & 49.86 ± 2.18 p =0.042; 51.85± 2.98 & 53.22± 2.24 p =0.00; 51.69± 2.88 & 53.48± 2.55 p =0.016). The surface vascular plexus vascular intensity was significantly reduced in the entire image,parafoveada and perifoveada PV (45.27 ±2.73 & 47.34±3.01 p =0.014; 45.76±3.87 & 48.16±4.14 p =0.037; 45.84±2.76 & 48.06±3.09 p =0.008). Coryocapular vascular dancity was significantly increased in parafoveada, PV (67.48±3.16 & 65.29±4.23 p =0.034). The result: in PV patients, the examination of the superior and temporary retina nerve fluid layer; in some areas, the peripapils and surface macular vessels are reduced, the coryocapils are increased. This condition in PV can be explained by increased blood viscosity and delayed blood flow.

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