Peripheral refraction and retinal contour in stable and progressive myopia

Detalhes bibliográficos
Autor(a) principal: Ribeiro, Miguel António Faria
Data de Publicação: 2013
Outros Autores: Queirós, A., Ferreira, Daniela Lopes, Jorge, Jorge, González-Méijome, José Manuel
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: https://hdl.handle.net/1822/37051
Resumo: Purpose. To compare the patterns of relative peripheral astigmatic refraction (tangential and sagittal power errors) and eccentric eye length between progressing and stable young-adult myopes. Methods. Sixty-two right eyes of 62 white patients participated in the study, of which 30 were nonprogressing myopes (NP group) for the last 2 years and 32 were progressing myopes (P group). Groups were matched for mean spherical refraction, axial length, and age. Peripheral refraction and eye length were measured along the horizontal meridian up to 35 and 30 degrees of eccentricity, respectively. Results. There were statistically significant differences between groups (p G 0.001) in the nasal retina for the astigmatic components of peripheral refraction. The P group presented a hyperopic relative sagittal focus at 35 degrees in the nasal retina of +1.00 T 0.83 diopters, as per comparison with a myopic relative sagittal focus of j0.10 T 0.98 diopters observed in the NP group (p G 0.001). Retinal contour in the P group had a steeper shape in the nasal region than that in the NP group (t test, p = 0.001). An inverse correlation was found (r = j0.775; p G 0.001) between retinal contour and peripheral refraction. Thus, steeper retinas presented a more hyperopic trend in the periphery. Conclusions. Stable and progressing myopes of matched age, axial length, and central refraction showed significantly different characteristics in their peripheral retinal shape and astigmatic components of tangential and sagittal power errors. The present findings may help explain the mechanisms that regulate ocular growth in humans.
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spelling Peripheral refraction and retinal contour in stable and progressive myopiaMyopia progressionPeripheral refractionAxial lengthRetinal shapeOblique astigmatismScience & TechnologyPurpose. To compare the patterns of relative peripheral astigmatic refraction (tangential and sagittal power errors) and eccentric eye length between progressing and stable young-adult myopes. Methods. Sixty-two right eyes of 62 white patients participated in the study, of which 30 were nonprogressing myopes (NP group) for the last 2 years and 32 were progressing myopes (P group). Groups were matched for mean spherical refraction, axial length, and age. Peripheral refraction and eye length were measured along the horizontal meridian up to 35 and 30 degrees of eccentricity, respectively. Results. There were statistically significant differences between groups (p G 0.001) in the nasal retina for the astigmatic components of peripheral refraction. The P group presented a hyperopic relative sagittal focus at 35 degrees in the nasal retina of +1.00 T 0.83 diopters, as per comparison with a myopic relative sagittal focus of j0.10 T 0.98 diopters observed in the NP group (p G 0.001). Retinal contour in the P group had a steeper shape in the nasal region than that in the NP group (t test, p = 0.001). An inverse correlation was found (r = j0.775; p G 0.001) between retinal contour and peripheral refraction. Thus, steeper retinas presented a more hyperopic trend in the periphery. Conclusions. Stable and progressing myopes of matched age, axial length, and central refraction showed significantly different characteristics in their peripheral retinal shape and astigmatic components of tangential and sagittal power errors. The present findings may help explain the mechanisms that regulate ocular growth in humans.American Academy of Optometry (AAOPT)Universidade do MinhoRibeiro, Miguel António FariaQueirós, A.Ferreira, Daniela LopesJorge, JorgeGonzález-Méijome, José Manuel20132013-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/1822/37051engFaria-Ribeiro, M.; Queirós, A.; Lopes-Ferreira, D.P.; Jorge, J.M.M.; González-Méijome, J.M.Peripheral refraction and retinal contour in stable and progressive myopia, Optometry and Vision Science, 90, 1, 9-15, 2013.1040-548810.1097/OPX.0b013e318278153c23208195info: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:RCAAP2024-05-11T06:14:40Zoai:repositorium.sdum.uminho.pt:1822/37051Portal AgregadorONGhttps://www.rcaap.pt/oai/openairemluisa.alvim@gmail.comopendoar:71602024-05-11T06:14:40Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Peripheral refraction and retinal contour in stable and progressive myopia
title Peripheral refraction and retinal contour in stable and progressive myopia
spellingShingle Peripheral refraction and retinal contour in stable and progressive myopia
Ribeiro, Miguel António Faria
Myopia progression
Peripheral refraction
Axial length
Retinal shape
Oblique astigmatism
Science & Technology
title_short Peripheral refraction and retinal contour in stable and progressive myopia
title_full Peripheral refraction and retinal contour in stable and progressive myopia
title_fullStr Peripheral refraction and retinal contour in stable and progressive myopia
title_full_unstemmed Peripheral refraction and retinal contour in stable and progressive myopia
title_sort Peripheral refraction and retinal contour in stable and progressive myopia
author Ribeiro, Miguel António Faria
author_facet Ribeiro, Miguel António Faria
Queirós, A.
Ferreira, Daniela Lopes
Jorge, Jorge
González-Méijome, José Manuel
author_role author
author2 Queirós, A.
Ferreira, Daniela Lopes
Jorge, Jorge
González-Méijome, José Manuel
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Universidade do Minho
dc.contributor.author.fl_str_mv Ribeiro, Miguel António Faria
Queirós, A.
Ferreira, Daniela Lopes
Jorge, Jorge
González-Méijome, José Manuel
dc.subject.por.fl_str_mv Myopia progression
Peripheral refraction
Axial length
Retinal shape
Oblique astigmatism
Science & Technology
topic Myopia progression
Peripheral refraction
Axial length
Retinal shape
Oblique astigmatism
Science & Technology
description Purpose. To compare the patterns of relative peripheral astigmatic refraction (tangential and sagittal power errors) and eccentric eye length between progressing and stable young-adult myopes. Methods. Sixty-two right eyes of 62 white patients participated in the study, of which 30 were nonprogressing myopes (NP group) for the last 2 years and 32 were progressing myopes (P group). Groups were matched for mean spherical refraction, axial length, and age. Peripheral refraction and eye length were measured along the horizontal meridian up to 35 and 30 degrees of eccentricity, respectively. Results. There were statistically significant differences between groups (p G 0.001) in the nasal retina for the astigmatic components of peripheral refraction. The P group presented a hyperopic relative sagittal focus at 35 degrees in the nasal retina of +1.00 T 0.83 diopters, as per comparison with a myopic relative sagittal focus of j0.10 T 0.98 diopters observed in the NP group (p G 0.001). Retinal contour in the P group had a steeper shape in the nasal region than that in the NP group (t test, p = 0.001). An inverse correlation was found (r = j0.775; p G 0.001) between retinal contour and peripheral refraction. Thus, steeper retinas presented a more hyperopic trend in the periphery. Conclusions. Stable and progressing myopes of matched age, axial length, and central refraction showed significantly different characteristics in their peripheral retinal shape and astigmatic components of tangential and sagittal power errors. The present findings may help explain the mechanisms that regulate ocular growth in humans.
publishDate 2013
dc.date.none.fl_str_mv 2013
2013-01-01T00:00:00Z
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 https://hdl.handle.net/1822/37051
url https://hdl.handle.net/1822/37051
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Faria-Ribeiro, M.; Queirós, A.; Lopes-Ferreira, D.P.; Jorge, J.M.M.; González-Méijome, J.M.Peripheral refraction and retinal contour in stable and progressive myopia, Optometry and Vision Science, 90, 1, 9-15, 2013.
1040-5488
10.1097/OPX.0b013e318278153c
23208195
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 American Academy of Optometry (AAOPT)
publisher.none.fl_str_mv American Academy of Optometry (AAOPT)
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
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
repository.mail.fl_str_mv mluisa.alvim@gmail.com
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