Clinical Study

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

Table 3

Safety index is the mean postoperative BCDVA/the mean preoperative BCDVA. was considered statistically significant.

Safety index
Treatment group1 month3 months6 months

TPRK1.030 ± 0.1221.039 ± 0.1151.047 ± 0.116
AAPRK0.933 ± 0.07600.990 ± 0.06221.020 ± 0.0801
value0.250.370.47