Quantitative Evaluation of the Retinal Vascular Parameters With OCTA in Patients With Behçet Disease Without Ocular Involvement.

Background And Objective: To evaluate the optical coherence tomography angiography (OCTA) features of patients with Behçet disease (BD) without ocular involvement.

Patients And Methods: Twenty-three patients with BD without ocular involvement and 29 healthy age/sex-matched control subjects were involved. The authors measured foveal avascular zone (FAZ) area, vessel density in the parafoveal region, and flow area (fovea-centered 3-mm radius area) in the superficial and deep capillary plexuses evaluated by OCTA.

Results: FAZ area was significantly larger in eyes with BD in both the superficial and deep capillary plexuses (0.331 vs. 0.240 mm [P = .004] and 0.352 vs. 0.257 mm [P = .003], respectively). Although mean capillary vessel density in parafoveal region and mean flow area were lower in eyes with BD for both superficial and deep capillary plexuses, these findings were not statistically significant.

Conclusion: Microvascular changes in macular region can be identified in patients with BD without ocular manifestation. [Ophthalmic Surg Lasers Imaging Retina. 2020;51:31-34.].