Clinical Outcomes of Aberration-Free All Surface Laser Ablation (ASLA) vs. Aberration-Free ASLA Assisted by Smart Pulse Technology in High Myopia: A One-Year Follow-Up Study

Table 4

Anterior corneal aberration values^a.

Parameter	Group	Preoperative	After 12 months		△(12-month postoperative vs. preoperative)
RMS HOA	SPT group	0.35 ± 0.09	0.89 ± 0.24	＜0.001^c	0.54 ± 0.25
	Non-SPT group	0.38 ± 0.10	1.03 ± 0.36	＜0.001^c	0.65 ± 0.39
		0.069	0.059		0.238
Spherical aberration	SPT group	0.25 ± 0.09	0.73 ± 0.19	＜0.001^c	0.48 ± 0.20
	Non-SPT group	0.22 ± 0.08	0.77 ± 0.21	＜0.001^c	0.56 ± 0.22
		0.024^b	0.461		0.091
Coma 0°	SPT group	−0.05 ± 0.10	−0.29 ± 0.26	＜0.001^c	−0.24 ± 0.28
	Non-SPT group	−0.11 ± 0.10	−0.31 ± 0.39	＜0.001^c	−0.21 ± 0.39
		0.001^b	0.840		0.231
Coma 90°	SPT group	−0.00 ± 0.15	−0.15 ± 0.42	0.012^c	−0.15 ± 0.39
	Non-SPT group	−0.04 ± 0.20	−0.40 ± 0.51	＜0.001^c	−0.36 ± 0.47
		0.234	0.001^b		0.003^b

RMS HOA = root mean square higher order aberrations; SPT = smart pulse technology. Compared with the SPT group and non-SPT group. ^aValues are presented as mean ± standard deviation. ^bSignificant difference between the SPT and non-SPT groups (Student’s t-test/Mann–Whitney U-test). ^cSignificant difference between preoperative and postoperative (Student’s t-test/Wilcoxon test).