Polar Value Analysis of Low to Moderate Astigmatism with Wavefront-Guided Sub-Bowman Keratomileusis

Table 5

Polar values in manifest refraction by WaveScan. All measurements with the steeper meridian of the preoperative total ocular astigmatism (TOA) as the reference plane.

	AKP	AKP + 45	Net astigmatism
Preop	1.14 ± 0.82	0.00	1.14 ± 0.82 @ 94.68°
Postop 1 m	0.14 ± 0.40	0.12 ± 0.34	0.18 ± 0.37 @ 115.73°
Postop 3 m	0.13 ± 0.38	0.13 ± 0.36	0.18 ± 0.37 @ 117.86°
Postop 6 m	0.10 ± 0.39	0.10 ± 0.36	0.15 ± 0.38 @ 117.37°
value	191.357	10.297	—
value	<0.001	<0.001	—
SIA 1 m	−1.02 ± 0.72	0.12 ± 0.34	−1.03 ± 0.50 @ 91.23°
SIA 3 m	−1.03 ± 0.74	0.13 ± 0.36	−1.04 ± 0.51 @ 91.03°
SIA 6 m	−1.05 ± 0.74	0.10 ± 0.36	−1.06 ± 0.52 @ 91.84°
TIA	−1.14 ± 0.82	0.00	−1.14 ± 0.82 @ 94.68°
value	8.959	10.297	—
value	0.001	<0.001	—
Error of treatment
1 m	0.14 ± 0.40	0.12 ± 0.34	0.18 ± 0.37 @ 115.73°
3 m	0.13 ± 0.38	0.13 ± 0.36	0.18 ± 0.37 @ 117.86°
6 m	0.10 ± 0.39	0.10 ± 0.36	0.15 ± 0.38 @ 117.37°
value	8.959	10.297	—
value	0.001	<0.001	—