Posters

Outcome of moderate and high myopic trans-epithelial photorefractive keratectomy with SCHWIND AMARIS at one year

Poster Details

First Author: D. Lin CANADA

Co Author(s):    S. Holland   S. Mosquera                 

Abstract Details

Purpose:

To compare, in a retrospective setting, 12 month postoperative follow-up outcomes of moderate vs. high myopic transepithelial photorefractive keratectomy (TE-PRK) corrections using SCHWIND AMARIS (SA).

Setting:

Pacific Laser Eye Centre, Vancouver, BC, Canada

Methods:

Retrospective case series. The outcomes of 446 myopic TE-PRK treatments performed with AMARIS evaluated at 12 month postoperatively. Analysis was divided into moderate (up to -8D, N=389) and high myopia (from -8D, N=44). Refractive and visual comparisons were performed in terms of refraction, uncorrected visual acuity (UCVA), corrected distance visual acuity (CDVA), and safety (change of CDVA from baseline).

Results:

12 month postoperative outcome: UCVA ≥20/20 achieved by 84% and 47% of the moderate and high myopia subgroups (p<0.0001); ≥20/40 achieved by 99% and 90% of the moderate and high myopia subgroups (p=0.001)); CDVA ≥20/20 achieved by 95% and 82% of the moderate and high myopia subgroups (p=0.001); astigmatism was 0.25±0.33D for moderate myopia versus 0.36±0.36D for high myopia, p=0.01; 14% and 28% of the moderate and high myopia subgroups gained lines of CDVA (p=0.02). No ≥2 lines loss of CDVA in either group. No postoperative differences observed in spherical equivalent. No retreatment was performed for either group.

Conclusions:

Myopic PRK with Schwind Amaris at 12 month postoperative showed good outcomes with 84% achieving 20/20 UDVA in moderate myopia (up to -8D) and 47% in high myopia (higher than -8D). Excellent results are possible with transepithelial photorefractive keratectomy with Schwind Amaris for moderate and high myopia, and are an alternative to LASIK.

Financial Disclosure:

One or more of the authors is employed by a forNONEprofit company with an interest in the subject of the presentation, One or more of the authors travel has been funded, fully or partially, by a company producing, developing or supplying the product or procedure presented, One or more of the authors receives consulting fees, retainer, or contract payments from a competing company