Table 2.

Efficacy index is the mean postoperative UDVA/the mean preoperative BCDVA. P < 0.05 was considered statistically significant. ^∗Statistically significant.

Efficacy index
Treatment group	1 day	1 week	3 month	6 months	6 months
TPRK	0.714 ± 0.0786	0.903 ± 0.0683	1.021 ± 0.128	1.036 ± 0.117	1.047 ± 0.116
AAPRK	0.477 ± 0.0872	0.558 ± 0.0564	0.921 ± 0.0789	0.987 ± 0.064	1.020 ± 0.0801
P value	<0.001	<0.001∗	0.20	0.35	0.47