Publicação
Peripheral refraction of myopic eyes with spectacle lenses correction and lens free emmetropes during accommodation
| Resumo: | To measure axial and off-axis refraction patterns in myopic eyes with spectacle lenses correction and lens free emmetropes in young healthy subjects at different target distances from 2.00 m (0.50 D) to 0.20 m (5.00 D) in terms of sphere, astigmatism, and spherical equivalent refraction. Methods Refraction was measured at the center, 20 and 40 degrees from the line of sight both nasally and temporally in 15 emmetropic and 25 myopic young healthy subjects with an open field, binocular, infrared autorefractor (Grand Seiko WAM-5500, Hiroshima, Japan). Fixation target was a Maltese cross set at 2.00, 0.50, 0.33 and 0.20 m from the corneal plane. Changes in off-axis refraction with accommodation level were normalized with respect to distance axial values and compared between myopic eyes with spectacle lenses correction and lens free emmetropes. Results Off-axis refraction in myopic eyes with spectacle lenses correction was significantly more myopic in the temporal retina compared to lens free emmetropes except for the closest target distance. Relative off-axis refractive error changed significantly with accommodation when compared to axial refraction particularly in the myopic group. This change in the negative direction was due to changes in the spherical component of refraction that became more myopic relative to the center at the 0.20 m distance as the J0 component of astigmatism was significantly reduced in both emmetropes and myopes for the closest target. Conclusion Accommodation to very near targets (up to 0.20 m) makes the off-axis refraction of myopes wearing their spectacle correction similar to that of lens free emmetropes. A significant reduction in off-axis astigmatism was also observed for the 0.20 m distance. |
|---|---|
| Autores principais: | Pereira, António Manuel Marques Queirós |
| Outros Autores: | Cerviño, Alejandro; González-Méijome, José Manuel |
| Assunto: | Of-axis refraction Refractive error Accommodation Myopia progression Off-axis refraction Ciências Médicas::Ciências da Saúde |
| Ano: | 2021 |
| País: | Portugal |
| Tipo de documento: | artigo |
| Tipo de acesso: | acesso aberto |
| Instituição associada: | Universidade do Minho |
| Idioma: | inglês |
| Origem: | RepositóriUM - Universidade do Minho |
| _version_ | 1867438295296770048 |
|---|---|
| author | Pereira, António Manuel Marques Queirós |
| author2 | Cerviño, Alejandro González-Méijome, José Manuel |
| author2_role | author author |
| author_facet | Pereira, António Manuel Marques Queirós Cerviño, Alejandro González-Méijome, José Manuel |
| author_role | author |
| contributor_name_str_mv | RepositóriUM - Universidade do Minho |
| country_str | PT |
| creators_json_txt | [{\"Person.name\":\"Pereira, António Manuel Marques Queirós\"},{\"Person.name\":\"Cerviño, Alejandro\"},{\"Person.name\":\"González-Méijome, José Manuel\"}] |
| datacite.contributors.contributor.contributorName.fl_str_mv | RepositóriUM - Universidade do Minho |
| datacite.creators.creator.creatorName.fl_str_mv | Pereira, António Manuel Marques Queirós Cerviño, Alejandro González-Méijome, José Manuel |
| datacite.date.Accepted.fl_str_mv | 2021-12-01T00:00:00Z |
| datacite.date.available.fl_str_mv | 2022-05-27T13:31:56Z |
| datacite.date.embargoed.fl_str_mv | 2022-05-27T13:31:56Z |
| datacite.rights.fl_str_mv | http://purl.org/coar/access_right/c_abf2 |
| datacite.subjects.subject.fl_str_mv | Of-axis refraction Refractive error Accommodation Myopia progression Off-axis refraction Ciências Médicas::Ciências da Saúde |
| datacite.titles.title.fl_str_mv | Peripheral refraction of myopic eyes with spectacle lenses correction and lens free emmetropes during accommodation |
| dc.contributor.none.fl_str_mv | RepositóriUM - Universidade do Minho |
| dc.creator.none.fl_str_mv | Pereira, António Manuel Marques Queirós Cerviño, Alejandro González-Méijome, José Manuel |
| dc.date.Accepted.fl_str_mv | 2021-12-01T00:00:00Z |
| dc.date.available.fl_str_mv | 2022-05-27T13:31:56Z |
| dc.date.embargoed.fl_str_mv | 2022-05-27T13:31:56Z |
| dc.format.none.fl_str_mv | application/pdf |
| dc.identifier.none.fl_str_mv | https://hdl.handle.net/1822/77947 |
| dc.language.none.fl_str_mv | eng |
| dc.publisher.none.fl_str_mv | BMC |
| dc.rights.none.fl_str_mv | http://purl.org/coar/access_right/c_abf2 |
| dc.subject.none.fl_str_mv | Of-axis refraction Refractive error Accommodation Myopia progression Off-axis refraction Ciências Médicas::Ciências da Saúde |
| dc.title.fl_str_mv | Peripheral refraction of myopic eyes with spectacle lenses correction and lens free emmetropes during accommodation |
| dc.type.none.fl_str_mv | http://purl.org/coar/resource_type/c_6501 |
| description | To measure axial and off-axis refraction patterns in myopic eyes with spectacle lenses correction and lens free emmetropes in young healthy subjects at different target distances from 2.00 m (0.50 D) to 0.20 m (5.00 D) in terms of sphere, astigmatism, and spherical equivalent refraction. Methods Refraction was measured at the center, 20 and 40 degrees from the line of sight both nasally and temporally in 15 emmetropic and 25 myopic young healthy subjects with an open field, binocular, infrared autorefractor (Grand Seiko WAM-5500, Hiroshima, Japan). Fixation target was a Maltese cross set at 2.00, 0.50, 0.33 and 0.20 m from the corneal plane. Changes in off-axis refraction with accommodation level were normalized with respect to distance axial values and compared between myopic eyes with spectacle lenses correction and lens free emmetropes. Results Off-axis refraction in myopic eyes with spectacle lenses correction was significantly more myopic in the temporal retina compared to lens free emmetropes except for the closest target distance. Relative off-axis refractive error changed significantly with accommodation when compared to axial refraction particularly in the myopic group. This change in the negative direction was due to changes in the spherical component of refraction that became more myopic relative to the center at the 0.20 m distance as the J0 component of astigmatism was significantly reduced in both emmetropes and myopes for the closest target. Conclusion Accommodation to very near targets (up to 0.20 m) makes the off-axis refraction of myopes wearing their spectacle correction similar to that of lens free emmetropes. A significant reduction in off-axis astigmatism was also observed for the 0.20 m distance. |
| dirty | 0 |
| eu_rights_str_mv | openAccess |
| format | article |
| fulltext.url.fl_str_mv | https://repositorium.uminho.pt/bitstreams/c842c61a-0758-41fb-816a-eb76337de611/download |
| id | rum_577dfc9768a49e2881affc630fbc8cb2 |
| identifier.url.fl_str_mv | https://hdl.handle.net/1822/77947 |
| instacron_str | repositorium |
| institution | Universidade do Minho |
| instname_str | Universidade do Minho |
| language | eng |
| network_acronym_str | rum |
| network_name_str | RepositóriUM - Universidade do Minho |
| oai_identifier_str | oai:repositorium.uminho.pt:1822/77947 |
| organization_str_mv | urn:organizationAcronym:repositorium |
| person_str_mv | Pereira, António Manuel Marques Queirós Cerviño, Alejandro González-Méijome, José Manuel |
| publishDate | 2021 |
| publisher.none.fl_str_mv | BMC |
| reponame_str | RepositóriUM - Universidade do Minho |
| repository_id_str | urn:repositoryAcronym:rum |
| service_str_mv | urn:repositoryAcronym:rum |
| spelling | engBMCengTo measure axial and off-axis refraction patterns in myopic eyes with spectacle lenses correction and lens free emmetropes in young healthy subjects at different target distances from 2.00 m (0.50 D) to 0.20 m (5.00 D) in terms of sphere, astigmatism, and spherical equivalent refraction. Methods Refraction was measured at the center, 20 and 40 degrees from the line of sight both nasally and temporally in 15 emmetropic and 25 myopic young healthy subjects with an open field, binocular, infrared autorefractor (Grand Seiko WAM-5500, Hiroshima, Japan). Fixation target was a Maltese cross set at 2.00, 0.50, 0.33 and 0.20 m from the corneal plane. Changes in off-axis refraction with accommodation level were normalized with respect to distance axial values and compared between myopic eyes with spectacle lenses correction and lens free emmetropes. Results Off-axis refraction in myopic eyes with spectacle lenses correction was significantly more myopic in the temporal retina compared to lens free emmetropes except for the closest target distance. Relative off-axis refractive error changed significantly with accommodation when compared to axial refraction particularly in the myopic group. This change in the negative direction was due to changes in the spherical component of refraction that became more myopic relative to the center at the 0.20 m distance as the J0 component of astigmatism was significantly reduced in both emmetropes and myopes for the closest target. Conclusion Accommodation to very near targets (up to 0.20 m) makes the off-axis refraction of myopes wearing their spectacle correction similar to that of lens free emmetropes. A significant reduction in off-axis astigmatism was also observed for the 0.20 m distance.application/pdfporPeripheral refraction of myopic eyes with spectacle lenses correction and lens free emmetropes during accommodationPereira, António Manuel Marques QueirósCerviño, AlejandroGonzález-Méijome, José ManuelHostingInstitutionOrganizationalRepositóriUM - Universidade do Minhoe-mailmailto:repositorium@usdb.uminho.ptrepositorium@usdb.uminho.ptISSNIsPartOf2326-0254DOIIsPartOf10.1186/s40662-021-00267-x2022-05-27T13:31:56Z2021-12-012021-12-01T00:00:00ZHandlehttps://hdl.handle.net/1822/77947http://purl.org/coar/access_right/c_abf2open accessOf-axis refractionRefractive errorAccommodationMyopia progressionOff-axis refractionhttp://www.oecd.org/science/inno/38235147.pdfFields of Science and Technology (FOS)Ciências Médicas::Ciências da Saúde2329279 bytesliteraturehttp://purl.org/coar/resource_type/c_6501journal articlehttp://purl.org/coar/access_right/c_abf2application/pdffulltexthttps://repositorium.uminho.pt/bitstreams/c842c61a-0758-41fb-816a-eb76337de611/download |
| spellingShingle | Peripheral refraction of myopic eyes with spectacle lenses correction and lens free emmetropes during accommodation Pereira, António Manuel Marques Queirós Of-axis refraction Refractive error Accommodation Myopia progression Off-axis refraction Ciências Médicas::Ciências da Saúde |
| status | SINGLETON |
| subject.fl_str_mv | Of-axis refraction Refractive error Accommodation Myopia progression Off-axis refraction |
| subject.other.fl_str_mv | Ciências Médicas::Ciências da Saúde |
| title | Peripheral refraction of myopic eyes with spectacle lenses correction and lens free emmetropes during accommodation |
| title_full | Peripheral refraction of myopic eyes with spectacle lenses correction and lens free emmetropes during accommodation |
| title_fullStr | Peripheral refraction of myopic eyes with spectacle lenses correction and lens free emmetropes during accommodation |
| title_full_unstemmed | Peripheral refraction of myopic eyes with spectacle lenses correction and lens free emmetropes during accommodation |
| title_short | Peripheral refraction of myopic eyes with spectacle lenses correction and lens free emmetropes during accommodation |
| title_sort | Peripheral refraction of myopic eyes with spectacle lenses correction and lens free emmetropes during accommodation |
| topic | Of-axis refraction Refractive error Accommodation Myopia progression Off-axis refraction Ciências Médicas::Ciências da Saúde |
| topic_facet | Of-axis refraction Refractive error Accommodation Myopia progression Off-axis refraction Ciências Médicas::Ciências da Saúde |
| url | https://hdl.handle.net/1822/77947 |
| visible | 1 |