First direct comparison of surface ablation vs CIRCLE for enhancement after myopic SMILE

Session Details

Session Title: SMILE

Session Date/Time: Sunday 23/09/2018 | 16:30-18:00

Paper Time: 17:18

Venue: Room A3, Podium 2

First Author: : M.Dirisamer AUSTRIA

Co Author(s): :    J. Siedlecki   M. Siedlecki   N. Luft   D. Kook   B. Mayer   S. Priglinger     

Abstract Details

Purpose:

Many options of retreatment after small incision lenticule extraction (SMILE) are available, with surface ablation and VisuMax CIRCLE-assisted flap creation being the most widely used ones. While both have been found to be safe and effective, no data comparing the two options is available yet.

Setting:

Department of Ophthalmology, Ludwig Maximilians-University Munich, Germany; SMILE Eyes Clinic Munich, Germany; SMILE Eyes Clinic Cologne, Germany; SMILE Eyes Clinic Linz, Austria

Methods:

The databases of the centers involved were screened for patients who had undergone either surface ablation (S) or CIRCLE (C) assisted enhancement after myopic SMILE. Out of 74 eyes, 24 (12 for each method) had a matching partner concerning pre-SMILE and pre-enhancement mean refractive spherical equivalent (MRSE), age, CD/UDVA and astigmatism. Refractive and functional outcomes were compared after a follow-up of three months.

Results:

Retreatment was performed after a mean 9.7 ± 7.2 (S) and 11.0 ± 4.4 (C) months for a residual MRSE of -0.91 ± 0.55 (S) and -0.90 ± 0.61 D (C). At three months, MRSE was similar with -0.07 ± 0.19 (S) and -0.13 ± 0.35 D (C). UDVA improvement was similar to a final of 0.02 ± 0.10 (S) vs. 0.03 ± 0.07 logMAR (C; p=0.78). Only one eye in the surface ablation group lost one line of CDVA. UDVA was significantly better after CIRCLE at one week (S: 0.20 ± 0.12 vs. C: 0.06 ± 0.10 logMAR).

Conclusions:

In this first study directly comparing surface ablation versus CIRCLE enhancement after SMILE, both methods yielded similar results at three months. However, there was improved speed of recovery concerning UDVA and CDVA in CIRCLE retreated eyes at one week.

Financial Disclosure:

... gains financially from product or procedure presented, ... travel has been funded, fully or partially, by a competing company, ... travel has been 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, ... receives consulting fees, retainer, or contract payments from a company producing, developing or supplying the product or procedure presented