In a contralateral eye study of 100 eyes of 50 patients with myopia and a narrow angle of refractive error undergoing PRK and thin-flap LASIK via femtosecond laser and wavefront analysis, 20/20 or better uncorrected visual acuity was achieved in 48% of PRK eyes and 88% of LASIK eyes at 1 month. However, vision equalized by 3 months, and there was no statistical difference in UCVA between the two eyes at 6 months (94% vs. 92%, respectively).

Although patient-reported pain and eye dryness also equalized by 6 months, patients more frequently reported these symptoms in their PRK eye in the immediate postoperative period. At day 3, 88% of patients reported more pain in their PRK eye, but the difference dissipated by 1 week. In a patient questionnaire, patients reported more dryness in their PRK eye through 6 months.

There was no statistically significant difference in spherical aberration and coma at any time point, the study authors said.

Source: osnsupersite.com