Skip to main content

Table 2 Biometric Characteristics of the Optic Disc and PPA-β/γ Zone of MF

From: Quantification of an oval optic disc in relation to myopic foveoschisis using swept-source optical coherence tomography

Parameter, Mean ± SD (Range) Eyes with MF (n = 25) Contralateral Eyes (n = 25) P Value
Optic disc
 Minimal diameter, μm 1130.11 ± 408.00 (539.14–2161.91) 1259.80 ± 408.48 (515.56–2115.40) 0.050
 Maximal diameter, μm 1916.05 ± 346.96 (1491.79–2798.36) 1795.63 ± 299.97 (1146.18–2345.27) 0.026
 OI 0.59 ± 0.19 (0.29–0.99) 0.70 ± 0.18 (0.28–0.97) 0.003
 Disc area, mm2 2.00 ± 0.85 (0.90–5.16) 2.24 ± 0.76 (1.15–4.70) 0.017
 Optic disc tilt angle, degrees 13.42 ± 7.30 (1.32–26.29) 10.37 ± 7.28 (0.00–23.30) 0.023
 Optic disc torsion angle, degrees 88.86 ± 10.82 (71.70–121.95) 88.52 ± 7.10 (71.51–97.81) 0.893
PPA-β/γ zone
 Circumferential extent of PPA-β/γ, clock hours 7.78 ± 2.75 (4.22–12.00) 8.02 ± 3.25 (3.40–12.00) 0.684
 Distance from foveal center to optic disc center, μm 5193.63 ± 599.73 (3873.49–6657.11) 5242.64 ± 611.52 (4212.46–7014.34) 0.739
 Distance from foveal center to temporal PPA-β/γ margin, μm 2706.87 ± 682.09 (1444.10–4162.03) 3108.66 ± 826.24 (945.24–5003.61) 0.015
 Distance from foveal center to nasal PPA-β/γ margin, μm 5114.57 ± 1224.14 (3432.98–8243.46) 5140.42 ± 1091.65 (3275.77–7244.57) 0.870
 PPA-β/γ width, μm 2407.70 ± 1540.66 (200.30–6302.48) 2031.76 ± 1490.40 (155.50–6126.50) 0.026
  1. MF Myopic foveoschisis, SD Standard deviation, OI Ovality index, PPA-β/γ Peripapillary atrophy-β/γ