Materials and Methods: Healthy individuals who visited our outpatient clinic for routine ophthalmic examination were evaluated. Inclusion criteria were best corrected visual acuity of at least 20/20 and no pathological findings in ophthalmic examination. The subjects were screened via FAZ, Non-Flow and Density assesment tool of OCTA. FAZ parameters and vessel density values of both superfi cial (SCP) and deep capillary plexuses (DCP) were measured.

Results: In this cross-sectional study 95 eyes of 50 healthy individuals (22 male, 28 female) were evaluated. The mean age was 40.85 ± 15.22 (18 - 68) years. The mean FAZ area in SCP and full retinal vasculature was 0.50 ± 0.13 (0.23 ± 0.76) and 0.28 ± 0.11 (0.07 - 0.51) mm2 respectively. FAZ perimeter, AI and FD were 2.00 ± 0.44 (0.98 - 2.75) mm, 1.09 ± 0.03 (1.05 - 1.23) and 55.83±4.01 (45.16-64.90)% respectively. The vessel density values of whole image in SCP and DCP were 51.48 ± 2.44 (43.10 - 55.90) and 53.23 ± 5.34 (40.80 - 65.00)% respectively.

Conclusion: OCTA provides objective values about FAZ area, perimeter, AI of FAZ, FD and vessel density of macular capillary plexuses. FD is a clinical indicator of macular capillary perfusion. These normative data may be of value as a reference of comparison in future studies of eyes with various pathologies. Keywords : Deep capillary plexus, foveal avascular zone, optical coherence tomography angiography, superficial capillary plexus, vessel density.