First European results of a new refractive lenticular extraction procedure-SmartSight by SCHWIND eye-tech-solutions

BackgroundTo evaluate vision 3 months after SmartSight lenticule extraction treatments.DesignCase series.MethodsThis case series of patients were treated at Specialty Eye Hospital Svjetlost in Zagreb, Croatia. Sixty eyes of 31 patients consecutively treated with SmartSight lenticule extraction were assessed. The mean age of the patients was 33 +/- 6 years (range 23-45 years) at the time of treatment with a mean spherical equivalent refraction of -5.10 +/- 1.35 D and mean astigmatism of 0.46 +/- 0.36 D. Monocular corrected distance visual acuity (CDVA), uncorrected distance visual acuity (UDVA) were assessed pre- and post-operatively. Ocular and corneal wavefront aberrations have been postoperatively compared to the preoperative baseline values. Changes in ocular wavefront refraction, as well as changes in keratometric readings are reported.ResultsAt 3 months post-operatively, mean UDVA was 20/20 +/- 2. Spherical equivalent showed a low myopic residual refraction of -0.37 +/- 0.58 D with refractive astigmatism of 0.46 +/- 0.26 D postoperatively. There was a slight improvement of 0.1 Snellen lines at 3-months follow-up. Compared to the preoperative status, ocular aberrations (at 6 mm diameter) did not change at 3 months follow-up; whereas corneal aberrations increased (+0.22 +/- 0.21 mu m for coma; +0.17 +/- 0.19 mu m for spherical aberration; and +0.32 +/- 0.26 mu m for HOA-RMS). The same correction was determined using changes in ocular wavefront refraction, as well as changes in keratometric readings.ConclusionLenticule extraction after SmartSight is safe and efficacious in the first 3 months postoperatively. The post-operative outcomes indicate improvements in vision.