Posters

Comparing visual outcomes between wavefront-guided photorefractive keratectomy and femtosecond laser in situ keratomileusis using a new generation aberrometer for the correction of high astigmatism (≥2.0 D)

Poster Details

First Author: P.Morales Lopez SPAIN

Co Author(s):    R. Tan   M. Koaik   F. Mostofian   K. Baig           

Abstract Details

Purpose:

To compare the 1-year visual and refractive outcomes of PRK and iLASIK for the correction of high astigmatism using a new generation aberrometer (iDesign).

Setting:

University of Ottawa Eye Institute.

Methods:

Single-center, and retrospective chart review of refractive surgery patients who underwent PRK or iLASIK between December 15, 2014 (when the iDesign was acquired) to October 15, 2017 at the University of Ottawa Eye Institute.

Results:

35 eyes were included in this study. 16 eyes underwent iLASIK, and 19 PRK. The Mean spherical equivalent (SE) treated was -3.21 ± 1.86 D in the iLASIK group, and -5.51 ± 2.61 D in the PRK group (p=0.006). The mean cylinder treated was 2.53 ± 0.58 D, and 2.70 ± 0.59 D in the iLASIK and PRK groups, respectively (p=0.409). No significant differences were found in terms of stability of SE, accuracy, safety, efficacy, and predictability between these 2 techniques in our center.

Conclusions:

Overall, both techniques perform very well and can be considered as surgical options for the correction of high astigmatism in our center. Choosing one technique over the other should rely on the preoperative characteristics/preferences of each patient.

Financial Disclosure:

None