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

Simple item page
dc.contributor.authorFernández, Joaquín
dc.contributor.authorRodríguez Vallejo, Manuel
dc.contributor.authorPoyales Galán, Francisco
dc.contributor.authorBurguera, Noemí
dc.contributor.authorGarzón Jiménez, Nuria
dc.date.accessioned2023-06-16T15:16:20Z
dc.date.available2023-06-16T15:16:20Z
dc.date.issued2020-02-17
dc.descriptionSubmitted: November 19, 2019 | Final revision submitted: January 26, 2020 | Accepted: February 17, 2020
dc.description.abstractPurpose: 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.
dc.description.departmentDepto. de Optometría y Visión
dc.description.facultyFac. de Óptica y Optometría
dc.description.refereedTRUE
dc.description.statuspub
dc.eprint.idhttps://eprints.ucm.es/id/eprint/59570
dc.identifier.doi10.1097/j.jcrs.0000000000000165
dc.identifier.issn0886-3350
dc.identifier.officialurlhttp://dx.doi.org/10.1097/j.jcrs.0000000000000165
dc.identifier.relatedurlhttps://journals.lww.com/jcrs/Abstract/publishahead/New_method_to_assess_the_accuracy_of_intraocular.99911.aspx
dc.identifier.urihttps://hdl.handle.net/20.500.14352/6097
dc.journal.titleJournal of cataract and refractive surgery
dc.language.isoeng
dc.publisherWolter Kluwer
dc.rights.accessRightsopen access
dc.subject.cdu681.73
dc.subject.cdu535.316/.317
dc.subject.keywordIntraocular lens
dc.subject.keywordPower calculation
dc.subject.keywordAccuracy
dc.subject.keywordAxial lenght
dc.subject.keywordAnterior-chamber depth
dc.subject.ucmÓptica oftálmica
dc.subject.ucmÓptica geométrica e instrumental
dc.subject.unesco2209.06 Óptica geométrica
dc.titleNew method to assess the accuracy of intraocular lens power calculation formulas according to ocular biometric parameters
dc.typejournal article
dspace.entity.typePublication
relation.isAuthorOfPublication367ce491-287f-4b2a-ba6a-870a393c5609
relation.isAuthorOfPublication.latestForDiscovery367ce491-287f-4b2a-ba6a-870a393c5609
Download
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Nuria Garzón_JCRS-19-1106 vN.pdf
Size:
1.13 MB
Format:
Adobe Portable Document Format
downoload Download
Collections
Artículos