New method to assess the accuracy of intraocular lens power calculation formulas according to ocular biometric parameters

Purpose: To develop a new method that makes it easy to detect accuracy deficiencies of any intraocular lens power calculation formulae and to test it on 9 different formulae. Setting: IOA, Madrid, Spain Design: Retrospective observational case series. Methods: This study’s first stage included 3519...

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Detalles Bibliográficos
Autores: Fernández, Joaquín, Rodríguez Vallejo, Manuel, Poyales Galán, Francisco, Burguera, Noemí, Garzón Jiménez, Nuria
Tipo de recurso: artículo
Fecha de publicación:2020
País:España
Institución:Universidad Complutense de Madrid (UCM)
Repositorio:Docta Complutense
Idioma:inglés
OAI Identifier:oai:docta.ucm.es:20.500.14352/6097
Acceso en línea:https://hdl.handle.net/20.500.14352/6097
Access Level:acceso abierto
Palabra clave:681.73
535.316/.317
Intraocular lens
Power calculation
Accuracy
Axial lenght
Anterior-chamber depth
Óptica oftálmica
Óptica geométrica e instrumental
2209.06 Óptica geométrica
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oai_identifier_str oai:docta.ucm.es:20.500.14352/6097
network_acronym_str ES
network_name_str España
repository_id_str
spelling New method to assess the accuracy of intraocular lens power calculation formulas according to ocular biometric parametersFernández, JoaquínRodríguez Vallejo, ManuelPoyales Galán, FranciscoBurguera, NoemíGarzón Jiménez, Nuria681.73535.316/.317Intraocular lensPower calculationAccuracyAxial lenghtAnterior-chamber depthÓptica oftálmicaÓptica geométrica e instrumental2209.06 Óptica geométricaPurpose: To develop a new method that makes it easy to detect accuracy deficiencies of any intraocular lens power calculation formulae and to test it on 9 different formulae. Setting: IOA, Madrid, Spain Design: Retrospective observational case series. Methods: This study’s first stage included 3519 eyes from 3519 candidates to cataract surgery for which frequency distributions for the following biometric eye parameters were computed: axial length (AXL), anterior-chamber depth (ACD), lens thickness (LT), white-to-white (WTW) and mean corneal radius (Rm). The resulting data for each parameter were 5th, 25th, 75th and 95th percentile, which allowed us to define the corresponding normality range. In a second stage, the new graphic-representation method was tested for 9 different formulae in a sample of 70 eyes undergoing cataract surgery with multifocal intraocular lens (MIOL) implantation. Results: Normality ranges (defined as the 25th-to-75th-percentile interval) were 22.84 to 24.42 mm for AXL, 2.86 to 3.39 mm for ACD, 4.36 to 4.88 mm for LT, 11.64 to 12.19 mm for WTW and 7.52 to 7.87 mm for Rm, with lower sizes in women. No significant differences were found along the 9 formulae for percentage of eyes in ±0.50D (p=0.82) or ±1.00D (p=0.97). The new graphical method showed less accuracy in ±0.50 D for ACDs from 2.46 to 2.85 mm (5th to 25th percentile) for several formulae (p<0.05). Conclusions: 9 formulae showed non-significant differences in the general predictability for a sample of eyes candidates to MIOL implantation. Predictability in this sample decreased for short ACDs.Wolter KluwerUniversidad Complutense de Madrid20202020-02-1720202020-02-17journal articlehttp://purl.org/coar/resource_type/c_6501info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/20.500.14352/6097reponame:Docta Complutenseinstname:Universidad Complutense de Madrid (UCM)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:docta.ucm.es:20.500.14352/60972026-06-02T12:44:21Z
dc.title.none.fl_str_mv New method to assess the accuracy of intraocular lens power calculation formulas according to ocular biometric parameters
title New method to assess the accuracy of intraocular lens power calculation formulas according to ocular biometric parameters
spellingShingle New method to assess the accuracy of intraocular lens power calculation formulas according to ocular biometric parameters
Fernández, Joaquín
681.73
535.316/.317
Intraocular lens
Power calculation
Accuracy
Axial lenght
Anterior-chamber depth
Óptica oftálmica
Óptica geométrica e instrumental
2209.06 Óptica geométrica
title_short New method to assess the accuracy of intraocular lens power calculation formulas according to ocular biometric parameters
title_full New method to assess the accuracy of intraocular lens power calculation formulas according to ocular biometric parameters
title_fullStr New method to assess the accuracy of intraocular lens power calculation formulas according to ocular biometric parameters
title_full_unstemmed New method to assess the accuracy of intraocular lens power calculation formulas according to ocular biometric parameters
title_sort New method to assess the accuracy of intraocular lens power calculation formulas according to ocular biometric parameters
dc.creator.none.fl_str_mv Fernández, Joaquín
Rodríguez Vallejo, Manuel
Poyales Galán, Francisco
Burguera, Noemí
Garzón Jiménez, Nuria
author Fernández, Joaquín
author_facet Fernández, Joaquín
Rodríguez Vallejo, Manuel
Poyales Galán, Francisco
Burguera, Noemí
Garzón Jiménez, Nuria
author_role author
author2 Rodríguez Vallejo, Manuel
Poyales Galán, Francisco
Burguera, Noemí
Garzón Jiménez, Nuria
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Universidad Complutense de Madrid
dc.subject.none.fl_str_mv 681.73
535.316/.317
Intraocular lens
Power calculation
Accuracy
Axial lenght
Anterior-chamber depth
Óptica oftálmica
Óptica geométrica e instrumental
2209.06 Óptica geométrica
topic 681.73
535.316/.317
Intraocular lens
Power calculation
Accuracy
Axial lenght
Anterior-chamber depth
Óptica oftálmica
Óptica geométrica e instrumental
2209.06 Óptica geométrica
description Purpose: To develop a new method that makes it easy to detect accuracy deficiencies of any intraocular lens power calculation formulae and to test it on 9 different formulae. Setting: IOA, Madrid, Spain Design: Retrospective observational case series. Methods: This study’s first stage included 3519 eyes from 3519 candidates to cataract surgery for which frequency distributions for the following biometric eye parameters were computed: axial length (AXL), anterior-chamber depth (ACD), lens thickness (LT), white-to-white (WTW) and mean corneal radius (Rm). The resulting data for each parameter were 5th, 25th, 75th and 95th percentile, which allowed us to define the corresponding normality range. In a second stage, the new graphic-representation method was tested for 9 different formulae in a sample of 70 eyes undergoing cataract surgery with multifocal intraocular lens (MIOL) implantation. Results: Normality ranges (defined as the 25th-to-75th-percentile interval) were 22.84 to 24.42 mm for AXL, 2.86 to 3.39 mm for ACD, 4.36 to 4.88 mm for LT, 11.64 to 12.19 mm for WTW and 7.52 to 7.87 mm for Rm, with lower sizes in women. No significant differences were found along the 9 formulae for percentage of eyes in ±0.50D (p=0.82) or ±1.00D (p=0.97). The new graphical method showed less accuracy in ±0.50 D for ACDs from 2.46 to 2.85 mm (5th to 25th percentile) for several formulae (p<0.05). Conclusions: 9 formulae showed non-significant differences in the general predictability for a sample of eyes candidates to MIOL implantation. Predictability in this sample decreased for short ACDs.
publishDate 2020
dc.date.none.fl_str_mv 2020
2020-02-17
2020
2020-02-17
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/20.500.14352/6097
url https://hdl.handle.net/20.500.14352/6097
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Wolter Kluwer
publisher.none.fl_str_mv Wolter Kluwer
dc.source.none.fl_str_mv reponame:Docta Complutense
instname:Universidad Complutense de Madrid (UCM)
instname_str Universidad Complutense de Madrid (UCM)
reponame_str Docta Complutense
collection Docta Complutense
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869410956080054272
score 15.301603

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