Correlation and regression analysis between residual gradation and uncorrected visual acuity one year after refractive surgery with LASIK, FS-LASIK, PRK, PRK Xtra techniques and the implantation of ICL® posterior chamber phakic lens in myopic correction
Autor: | Jose M. Abad, Irene Blanco-Dominguez, Francesc Duch, Vicente Polo, Elena García-Martín, Manuel Gomez-Barrera |
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Rok vydání: | 2020 |
Předmět: |
Male
Visual acuity genetic structures medicine.medical_treatment Keratomileusis Laser In Situ Visual Acuity Intraocular Lens Implantation Keratomileusis Cornea Lens Implantation Intraocular Refractive surgery Medicine and Health Sciences Myopia Visual Impairments Lenses Intraocular Eye Lens Multidisciplinary Ophthalmic Procedures Regression analysis Photorefractive keratectomy Risk-factors Refractive Surgery Treatment Outcome medicine.anatomical_structure Retreatment Ectasia Medicine Female Anatomy medicine.symptom Research Article Adult medicine.medical_specialty In-situ keratomileusis Ocular Anatomy Science Surgical and Invasive Medical Procedures Photorefractive Keratectomy Young Adult Ocular System Ophthalmology Keratectomy Linear regression medicine Humans Retrospective Studies business.industry Biology and Life Sciences Astigmatism LASIK eye diseases Spain Linear Models sense organs business Lasik |
Zdroj: | R-USJ: Repositorio Institucional de la Universidad San Jorge Universidad San Jorge (USJ) PLoS ONE, Vol 15, Iss 9, p e0238399 (2020) Zaguán: Repositorio Digital de la Universidad de Zaragoza Universidad de Zaragoza Zaguán. Repositorio Digital de la Universidad de Zaragoza instname PLoS ONE |
Popis: | Purpose To analyze the influence of the final spherical equivalent (SE) in LogMAR uncorrected distance visual acuity (UDVA) one year after refractive surgery. We analysed refractive results, their predictability and efficacy, and the safety results of the different methods as secondary outcomes. Setting Refractive Surgery Unit of the Institut Català de Retina (ICR) in Barcelona, Spain. Design Retrospective, analytical observational study. Methods Retrospective and observational study of 654 eyes of 327 patients who underwent refractive surgery to treat their myopia or myopic astigmatism using LASIK, FS-LASIK, PRK, PRK Xtra or ICL-type lens implantation surgery were included. Results The correlation between the SE in absolute value was statistically significant in all techniques utilized, reaching higher values in the FS-LASIK and LASIK techniques, 0.774 and 0.706 respectively, and lesser values in PRK (0.480) and PRK Xtra (0.482). A significant adjustment via a univariate linear regression model could be implemented in all techniques, albeit the R2 coefficient of determination values were higher than those for the FS-LASIK (0.599) and LASIK (0.494) techniques. Conclusions There is a positive correlation between post-surgical SE value and post-operative LogMAR UDVA. These regression models can be adjusted to predict the final UDVA according to the final SE. The techniques that are most influenced by the final SE in terms of their visual results are FS-LASIK and LASIK. |
Databáze: | OpenAIRE |
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