6 month results of femtosecond-only laser vision correction technique smile

Poster Details

First Author: I.Solomatins LATVIA

Co Author(s):    J. Gertnere              

Abstract Details

Purpose:

To report the 6-months results of first 77 fully seeing eyes treated for myopia with a new method of refractive correction, Small Incision femtosecond Lenticule Extraction SMILE. SMILE is one of the kinds of complete femtosecond vision correction procedure ReLEx (Carl Zeiss`brand name) performed entirely with the VisuMax® Femtosecond laser. In a recent study SMILE is investigated in terms of stability, safety, efficacy, predictability and HO spherical aberration changes.

Setting:

Dr. Solomatin Eye Center, Riga, Latvia

Methods:

This prospective clinical trial comprised 77 eyes from 39 patients. The mean age was 29 years. The pseudoflap and a lenticule of intrastromal corneal tissue were cut simultaneously using a femtosecond laser VisuMax. The lenticules were removed from the corneal tissue throw the small incision. Preoperatively the mean spherical equivalent (SE) was -4.51 D ± 1.36 SD (from -9.00 to -2.00). The mean cylinder was -0.42 ± 0.55 (from -3.0 till 0). The follow- up time was 6 months.

Results:

6 months postoperatively, the mean SE was -0.1D±0.26 SD. The cylinder was -0.05D± 0.23SD (from +1.0 till-1.0 D). 23.38% or (18eyes) gained 1 line, 67.53% (52 eyes) no changed, 7.79 % (6 eyes) lost 1 line and 1 eye lost 2 lines. UDVA 20/32 and better had 100% (77 eyes), UDVA 20/20 and better had 81.82% (63eyes).The mean spherical aberration postoperatively was Z4;0 -0.07±0.21.

Conclusions:

The SMILE procedure for correcting the myopia shows good results in terms of efficacy, stability and safety, with few adverse events and less induction of HO aberrations. A one- laser system would decrease the cost of the procedure. SMILE potentially safer for biomechanical structure of cornea. Current results also indicate that there is less induction of spherical aberration. The femtosecond laser cutting action is more independent on corneal hydratation and another fluency rates. FINANCIAL DISCLOSURE?: ... research is funded, fully or partially, by a company producing, developing or supplying the product or procedure presented