Version 1
: Received: 21 July 2020 / Approved: 22 July 2020 / Online: 22 July 2020 (09:53:46 CEST)
How to cite:
Castro-Luna, G.; Alaskar, H.; Pérez-Rueda, A.; Jimenez-Rodriguez, D. Long Term Follow-up of Laser Myopia Surgery. Preprints2020, 2020070509. https://doi.org/10.20944/preprints202007.0509.v1
Castro-Luna, G.; Alaskar, H.; Pérez-Rueda, A.; Jimenez-Rodriguez, D. Long Term Follow-up of Laser Myopia Surgery. Preprints 2020, 2020070509. https://doi.org/10.20944/preprints202007.0509.v1
Castro-Luna, G.; Alaskar, H.; Pérez-Rueda, A.; Jimenez-Rodriguez, D. Long Term Follow-up of Laser Myopia Surgery. Preprints2020, 2020070509. https://doi.org/10.20944/preprints202007.0509.v1
APA Style
Castro-Luna, G., Alaskar, H., Pérez-Rueda, A., & Jimenez-Rodriguez, D. (2020). Long Term Follow-up of Laser Myopia Surgery. Preprints. https://doi.org/10.20944/preprints202007.0509.v1
Chicago/Turabian Style
Castro-Luna, G., Antonio Pérez-Rueda and Diana Jimenez-Rodriguez. 2020 "Long Term Follow-up of Laser Myopia Surgery" Preprints. https://doi.org/10.20944/preprints202007.0509.v1
Abstract
Refractive surgery is an increasingly popular procedure to decrease spectacle or contact lens dependency. The two most commonly used surgical techniques to correct myopia is Photorefractive keratectomy (PRK) and Femtosecond- Lasik (FS-LASIK)There are few publications that gathers such a long term follow up of both surgical techniques (2) Methods It has been performed a retrospective non-randomized study 509 PRK eyes and 310 FS-LASIK surgeries were followed for 10 years for the treatment of myopia and compound myopic astigmatism. Patients were followed up three months, one year, 2 years, 5 and 10 years. The safety index of both procedures was defined as a quotient between the postoperative BCVA (Best Corrected Visual Acuity) and the preoperative BCVA. The predictability is calculated as difference between the expected spherical equivalent and the achieved spherical equivalent. The efficacy index was calculated as a quotient between postoperative UCVA divided by the preoperative BCVA (3) Results. The results were: a safety index higher than 100% (109%) and an efficacy index of 82.4% after 10 years of PRK surgery in both groups. FS-LASIK was the safest surgery after 10 years and the most efficacy technique although in this case there were no statistically significant differences (4) Conclusions. All these data demonstrated better indexes for FS-LASIK
Keywords
laser excimer; myopia surgery; long term; Femto-LASIK; PRK
Subject
Medicine and Pharmacology, Ophthalmology
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.