SMILE surgery with and without cyclotorsion: comparative analysis of the early clinical and functional results

Session Details

Session Title: Refractive
Session Date/Time: Friday 21/02/2020 | 08:15-10:10
Paper Time: 09:42
Venue: Fes 1.

First Author: I.Mushkova RUSSIA
Co Author(s): S. Kostenev  A. Karimova  G. Gamidov           

Abstract Details

Purpose:

To compare the clinical and functional results of laser correction of myopic astigmatism using SMILE technology with and without cyclotorsion

Setting:

S. Fyodorov Eye Microsurgery Federal State Institution

Methods:

We observed of two patients groups (30 patients - 30 eyes each) with and without cyclotorsion. Cyclotorsion was determined by using «Verion» image guided system. The following studies were performed for all patients before and after operation: determination of uncorrected distance visual acuity, corrected distance visual acuity, autorefractometry, keratotopography (TMS-4, Tomey, Japan, «Pentacam» Oculus, Germany), photographic registration of the eye to determine cyclotorsion «Verion» (Alcon, USA). Additionally indices of the efficasy and safety were calculated. Comparative data analysis was performed at 3 months after SMILE surgery

Results:

The mean value of cyclotorsion in the control group and the «Verion» group was 6.16 ° ± 1.31 ° and 6.3 ° ± 1.36 °, respectively (p>0.05). Three months after surgery, the efficacy index was higher in the "Verion" group (p<0.05). The safety index in both groups was not statistically significantly different (p>0.05). Predictability within ± 0.5 D was 70% and 100% in the control group and in the «Verion» group, respectively. The cylindrical component of refraction within ± 0.5 D was 40% and 90% in the control group and in the «Verion» group, respectively (p<0.05)

Conclusions:

Cyclotorsion compensation by «Verion» image guided system is an effective, safe and predictable way to increase the clinical and functional results of SMILE surgery

Financial Disclosure: