Refractive Lenticule Extraction for Treatment of Hyperopia: 9-Month Final Results of Prospective Study
Purpose
To establish and to prove new profiles for the treatment of hyperopia by Femtosecond Lenticule Extraction (ReLEx FLEx).
Methods
In this prospective study nine eyes of 5 patients underwent an uncomplicated hyperopic FLEx using VisuMax Femtosecond laser (Carl Zeiss Meditec AG). The new lenticule resection profile achieves a 6mm optical zone with a transition zone of at least 2mm. Only the sphere was treated.
Results
Patients’ mean age was 55.5 years and the preoperative spherical equivalent (SE) of the manifest refraction was +1.82 D ( +1,25 till +3.0). Because of the presbyopic age the treatment was aimed at low myopia (mean target SE=-0.88D with a mean treatment refraction of 2.69 D). At the last follow-up, after 9 months 33% were within ± 0.5D and 78% within ± 1.0D of intended correction. 33% lost one line and 11% gained one line CDVA. There were neither decentrations nor any other adverse effects. All patients were happy with the results achieved.
Conclusion
This pilot study indicates a better stability of induced refractive change for spherical hyperopia using new profiles as compared to our previously published data. The next step is to extend the study for spherocylindrical hyperopic treatments.