Table 2

Vessel diameter measurements in two OCTA protocols and AOO

Unit: µmAOOSS-OCTA 3×3 mm2 (OCTA3)SS-OCTA 9×9 mm2 (OCTA9)
Mean±SD (COV)Mean±SD (COV)Mean±SD (COV)
Total (n=240)50.5±15.6 (30.9)55.2±16.3 (29.5)54.7±14.3 (26.1)
Arteries (n=147)51.8±13.9 (26.8)56.7±14.5 (25.6)56.1±13.2 (23.5)
Veins (n=93)48.4±18.0 (37.2)52.8±18.6 (35.2)52.6±15.9 (30.2)
D≥45 µm (n=133)60.8±13.5 (22.1)65.4±14.4 (22.0)63.5±13 (20.5)
D<45 µm (n=107)37.7±5.1 (13.7)42.4±6.7 (15.8)43.7±5.7 (13.1)
  • AOO, adaptive optics ophthalmoscope; COV, coefficient of variance; OCTA, optical coherence tomography angiography; SS-OCTA, swept-source OCTA.