A comparison of wavefront-guided LASIK to SMILE surgery: six-month outcomes

Session Details

Session Title: Corneal Refractive Surgery

Session Date/Time: Tuesday 17/09/2019 | 14:00-16:00

Paper Time: 14:24

Venue: Free Paper Forum: Podium 3

First Author: : E.Manche USA

Co Author(s): :    K. Hirabayashi                             

Abstract Details

Purpose:

To prospectively compare outcomes between wavefront-guided LASIK and SMILE surgery in the treatment of spherical myopia. Outcome measures include high contrast snellen acuity, low contrast snellen acuity (5 and 25%), safety, predictability, efficacy, higher order aberration analysis and self-reported quality of vision.

Setting:

University-based academic refractive surgical service

Methods:

Forty-six eyes of 23 consecutive patients underwent SMILE surgery in one eye and wavefront-guided LASIK in their fellow eye. Wavefront-guided LASIK was performed using the J & J Vision Visx S4 IR excimer laser system with the iDesign aberrometer. SMILE surgery was performed in the fellow eye using the Carl Zeiss Visumax femtosecond laser system. Eyes were randomized according to ocular dominance. The mean pre-operative spherical equivalent refraction was -3.40 +/- 1.79 and -3.27+/-1.68 in the wavefront-guided group and SMILE group respectively.

Results:

At the six-month post-op visit the mean spherical equivalent refraction was +0.01 +/- 0.21 in the wavefront-guided LASIK group and -0.12 +/- 0.29 in the SMILE group respectively. At the six-month post-op visit, 90% of the WFG-LASIK group and 80% of the SMILE group had an UDVA of 20/20 and 90% and 60%, respectively, had an UDVA of 20/16 (p = 0.04). There were no statistically significant differences in low contrast visual acuity and higher order aberrations between the two groups.

Conclusions:

Wavefront-guided LASIK and SMILE have similar clinical outcomes with excellent safety, efficacy and predictability in both groups. Wavefront-guided LASIK has faster recovery of uncorrected visual acuity compared to SMILE surgery.

Financial Disclosure:

receives consulting fees, retainer, or contract payments from a company producing, developing or supplying the product or procedure presented, research is funded, fully or partially, by a company producing, developing or supplying the product or procedure presented, receives consulting fees, retainer, or contract payments from a competing company