Corneal aberrations, contrast sensitivity, and light distortion in orthokeratology patients: 1-year results
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/1822/44059 |
Resumo: | Purpose. To evaluate the corneal higher-order aberrations (HOA), contrast sensitivity function (CSF), and light distortion (LD) in patients undergoing orthokeratology (OK). Methods. Twenty healthy subjects (mean age: 21.40 ± 8 years) with mean spherical equivalent refractive error M = −2.19 ± 0.97 D were evaluated at 1 day, 1 month, and 1 year after starting OK treatment. Monocular LD, photopic monocular CSF, and corneal HOA for 6 mm pupil size were measured. Results. LD showed an increase after the first night ( < 0.05) and recovery to baseline after 1 month, remaining stable after 1 year ( > 0.05). Spherical-like, coma-like, and secondary astigmatism HOA RMS increased significantly ( ≤ 0.022) from baseline to 1-month visit, remaining unchanged over the follow-up. Contrast sensitivity for medium frequencies (3.0, 4.24, and 6.00 cpd) was significantly correlated with LD parameters at baseline ( ≤ −0.529, < 0.001). However, after 1 year of treatment, this correlation was only statistically significant for 12 cpd spatial frequency ( ≤ −0.565, < 0.001). Spherical-like RMS for 6 mm pupil size correlated with irregularity of the LD ( = −0.420, < 0.05) at the 1-year visit. Conclusion. LD experienced by OK patients recovers after one month of treatment and remains stable in the long term while optical aberrations remain significantly higher than baseline. |
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Corneal aberrations, contrast sensitivity, and light distortion in orthokeratology patients: 1-year resultsScience & TechnologyPurpose. To evaluate the corneal higher-order aberrations (HOA), contrast sensitivity function (CSF), and light distortion (LD) in patients undergoing orthokeratology (OK). Methods. Twenty healthy subjects (mean age: 21.40 ± 8 years) with mean spherical equivalent refractive error M = −2.19 ± 0.97 D were evaluated at 1 day, 1 month, and 1 year after starting OK treatment. Monocular LD, photopic monocular CSF, and corneal HOA for 6 mm pupil size were measured. Results. LD showed an increase after the first night ( < 0.05) and recovery to baseline after 1 month, remaining stable after 1 year ( > 0.05). Spherical-like, coma-like, and secondary astigmatism HOA RMS increased significantly ( ≤ 0.022) from baseline to 1-month visit, remaining unchanged over the follow-up. Contrast sensitivity for medium frequencies (3.0, 4.24, and 6.00 cpd) was significantly correlated with LD parameters at baseline ( ≤ −0.529, < 0.001). However, after 1 year of treatment, this correlation was only statistically significant for 12 cpd spatial frequency ( ≤ −0.565, < 0.001). Spherical-like RMS for 6 mm pupil size correlated with irregularity of the LD ( = −0.420, < 0.05) at the 1-year visit. Conclusion. LD experienced by OK patients recovers after one month of treatment and remains stable in the long term while optical aberrations remain significantly higher than baseline.This research was supported in part by Projects PTDC/SAUBEB/098391/2008//FCOMP-01-0124-FEDER-010897,PTDC/SAU-BEB/098392/2008, and Strategic Funding UID/FIS/04650/2013.Hindawi Publishing CorporationUniversidade do MinhoSantolaria-Sanz, ElenaCerviño, AlejandroGonzález-Méijome, José Manuel20162016-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/44059engSantolaria-Sanz, Elena; Cerviño, Alejandro; González-Méijome, José M.Corneal Aberrations, Contrast Sensitivity, and Light Distortion in Orthokeratology Patients: 1-Year Results, Journal of Ophthalmology, 2016, 8453462, 1-8, 2016.2090-004X10.1155/2016/8453462info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-07-21T12:35:30ZPortal AgregadorONG |
dc.title.none.fl_str_mv |
Corneal aberrations, contrast sensitivity, and light distortion in orthokeratology patients: 1-year results |
title |
Corneal aberrations, contrast sensitivity, and light distortion in orthokeratology patients: 1-year results |
spellingShingle |
Corneal aberrations, contrast sensitivity, and light distortion in orthokeratology patients: 1-year results Santolaria-Sanz, Elena Science & Technology |
title_short |
Corneal aberrations, contrast sensitivity, and light distortion in orthokeratology patients: 1-year results |
title_full |
Corneal aberrations, contrast sensitivity, and light distortion in orthokeratology patients: 1-year results |
title_fullStr |
Corneal aberrations, contrast sensitivity, and light distortion in orthokeratology patients: 1-year results |
title_full_unstemmed |
Corneal aberrations, contrast sensitivity, and light distortion in orthokeratology patients: 1-year results |
title_sort |
Corneal aberrations, contrast sensitivity, and light distortion in orthokeratology patients: 1-year results |
author |
Santolaria-Sanz, Elena |
author_facet |
Santolaria-Sanz, Elena Cerviño, Alejandro González-Méijome, José Manuel |
author_role |
author |
author2 |
Cerviño, Alejandro González-Méijome, José Manuel |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
Universidade do Minho |
dc.contributor.author.fl_str_mv |
Santolaria-Sanz, Elena Cerviño, Alejandro González-Méijome, José Manuel |
dc.subject.por.fl_str_mv |
Science & Technology |
topic |
Science & Technology |
description |
Purpose. To evaluate the corneal higher-order aberrations (HOA), contrast sensitivity function (CSF), and light distortion (LD) in patients undergoing orthokeratology (OK). Methods. Twenty healthy subjects (mean age: 21.40 ± 8 years) with mean spherical equivalent refractive error M = −2.19 ± 0.97 D were evaluated at 1 day, 1 month, and 1 year after starting OK treatment. Monocular LD, photopic monocular CSF, and corneal HOA for 6 mm pupil size were measured. Results. LD showed an increase after the first night ( < 0.05) and recovery to baseline after 1 month, remaining stable after 1 year ( > 0.05). Spherical-like, coma-like, and secondary astigmatism HOA RMS increased significantly ( ≤ 0.022) from baseline to 1-month visit, remaining unchanged over the follow-up. Contrast sensitivity for medium frequencies (3.0, 4.24, and 6.00 cpd) was significantly correlated with LD parameters at baseline ( ≤ −0.529, < 0.001). However, after 1 year of treatment, this correlation was only statistically significant for 12 cpd spatial frequency ( ≤ −0.565, < 0.001). Spherical-like RMS for 6 mm pupil size correlated with irregularity of the LD ( = −0.420, < 0.05) at the 1-year visit. Conclusion. LD experienced by OK patients recovers after one month of treatment and remains stable in the long term while optical aberrations remain significantly higher than baseline. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016 2016-01-01T00:00:00Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/1822/44059 |
url |
http://hdl.handle.net/1822/44059 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Santolaria-Sanz, Elena; Cerviño, Alejandro; González-Méijome, José M.Corneal Aberrations, Contrast Sensitivity, and Light Distortion in Orthokeratology Patients: 1-Year Results, Journal of Ophthalmology, 2016, 8453462, 1-8, 2016. 2090-004X 10.1155/2016/8453462 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Hindawi Publishing Corporation |
publisher.none.fl_str_mv |
Hindawi Publishing Corporation |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
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RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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repository.mail.fl_str_mv |
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