Comparison between Transepithelial Photorefractive Keratectomy versus Alcohol-Assisted Photorefractive Keratectomy in Correction of Myopia and Myopic Astigmatism

Table 2

Efficacy index is the mean postoperative UDVA/the mean preoperative BCDVA. 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
value	<0.001	<0.001	0.20	0.35	0.47