[Changes in perfusional and morphological parameters of the macular area after silicone oil tamponade of the vitreous cavity].

Purpose: To compare the changes of the macular morphological and functional parameters in the postoperative period in patients with silicone oil tamponade after successful surgery of the macula-on rhegmatogenous retinal detachment (RRD).

Material And Methods: The study included 20 eyes operated on for macula-on RRD, which made up the first group, and the control group (20 eyes) for comparison. All patients of the study group underwent vitrectomy using silicone oil tamponade. Standard ophthalmological examination was performed on the 3rd day (early postoperative period) and the 14th day (late postoperative period), including OCT and OCT-A that were used to assess morphological and functional changes.

Results: A significant decrease in visual acuity was seen on the 3rd day after surgery involving the use of silicone oil tamponade, in comparison with the 14th day (=0.0237) and the control group (=0.0001). A decrease in the FD parameter (=0.045), a decrease in vascular density in the fovea (=0.020) and parafovea (=0.024) in SCP were found on the 3rd day in comparison with control. On the 14th day of postoperative observation, a tendency was detected for choroidal perfusion to restore, as well as significant increase in FD (=0.016), and an increase in vascular density in parafovea (=0.01) compared with the early postoperative period. No statistically significant changes were seen in the FAZ area and vessel density DCP (>0.05).