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https://hdl.handle.net/1822/54824
Título: | Relative peripheral refraction across 4 meridians after orthokeratology and LASIK surgery |
Autor(es): | Queirós, A. Sousa, Ana Amorim de Lopes-Ferreira, Daniela Villa-Collar, César Ramón Gutiérrez, Ángel González-Méijome, José Manuel |
Palavras-chave: | LASIK surgery Orthokeratology Peripheral refraction Myopia progression |
Data: | 2018 |
Editora: | BMC |
Revista: | Eye and Vision |
Citação: | Queirós, António; Amorim-de-Sousa, Ana; Lopes-Ferreira, Daniela; Villa-Collar, César; Gutiérrez, AR; González-Méijome, JM. Relative Peripheral Refraction across 4 meridians after Orthokeratology and LASIK surgery, Eye and Vision, 5, 12, 1-8, 2018. |
Resumo(s): | Background: To 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 <− 1.00 D) underwent LASIK (n = 26) or OK (n = 34) to treat myopia. Axial and off-axis refraction were measured with an open-field autorefractometer before and after stabilized treatments. Off-axis measurements were obtained for the horizontal (35° nasal and temporal retina) and vertical (15° superior and inferior retina) meridians, and for two oblique directions (45–225° and 135–315°) up to 20° of eccentricity. The refractive profile was addressed as relative peripheral refractive error (RPRE). Results: OK and LASIK post-treatment results showed an increase of myopic relative refraction at several eccentric locations. At the four meridians evaluated, the M component of the pre-treatment RPRE values was not statistically different (p > 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. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/54824 |
DOI: | 10.1186/s40662-018-0106-1 |
ISSN: | 2326-0254 |
Outros identificadores: | 2326-0254 |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | CDF - OCV - Artigos/Papers (with refereeing) |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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Queiros_18_EyeVision (Relative peripheral refraction across 4 meridians LASIK vs OK).pdf | 1,84 MB | Adobe PDF | Ver/Abrir |