Queirós Pereira, AntonioAmarim-da-Sousa, AnaLopes-Ferreira, DanielaVilla Collar, CésarGutiérrez Ortega, Ángel RamónGonzález Méijome, José Manuel2018-06-062018-06-062018Queirós, A., Amorim-de-Sousa, A., Lopes-Ferreira, D., Villa-Collar, C., Gutiérrez, Á. R., & González-Méijome, J. M. (2018). Relative peripheral refraction across 4 meridians after orthokeratology and LASIK surgery. Eye and Vision, 5(1), 12. https://doi.org/10.1186/s40662-018-0106-12326-0254http://hdl.handle.net/11268/7288To characterize the axial and off-axis refraction across four meridians of the retina in myopic eyes before and after Orthokeratology (OK) and LASIK surgery. Methods: Sixty right eyes with a spherical equivalent (M) between − 0.75 to − 5.25 D (cylinder 0.05) from the post-treatment RPRE within 30° and 20° of the central visual field after LASIK and OK, respectively. These results demonstrated that the treatment zone warrants an optimal central field of vision. Conclusions: The present study gives an overview of RPRE after refractive corneal reshaping treatments (OK and LASIK) across vertical, horizontal and two oblique meridians together. This allows a 3D representation of RPRE at the retina and shows that the myopic shift induced by both treatments is more relevant in horizontal directions.engAttribution-NonCommercial-NoDerivatives 4.0 Internacionalhttp://creativecommons.org/licenses/by-nc-nd/4.0/Orthokeratologyjournal article10.1186/s40662-018-0106-1open accessÓpticaÓpticaCiencias médicas