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dc.contributor.authorDooley, Ian
dc.contributor.authorCharalampidou, Sofia
dc.contributor.authorNolan, John
dc.contributor.authorLoughman, James
dc.contributor.authorMolloy, Laura
dc.contributor.authorBeatty, Stephen
dc.date.accessioned2011-05-18T10:36:55Z
dc.date.available2011-05-18T10:36:55Z
dc.date.issued2011-03
dc.identifier.citationEstimation of effective lens position using a method independent of preoperative keratometry readings. 2011, 37 (3):506-12 J Cataract Refract Surgen
dc.identifier.issn1873-4502
dc.identifier.pmid21333875
dc.identifier.doi10.1016/j.jcrs.2010.09.027
dc.identifier.urihttp://hdl.handle.net/10147/129744
dc.description.abstractTo evaluate the validity of a keratometry (K)-independent method of estimating effective lens position (ELP) before phacoemulsification cataract surgery.
dc.description.abstractInstitute of Eye Surgery, Whitfield Clinic, Waterford, Ireland.
dc.description.abstractEvaluation of diagnostic test or technology.
dc.description.abstractThe anterior chamber diameter and corneal height in eyes scheduled for cataract surgery were measured with a rotating Scheimpflug camera. Corneal height and anterior chamber diameter were used to estimate the ELP in a K-independent method (using the SRK/T [ELP(rs)] and Holladay 1 [ELP(rh)] formulas).
dc.description.abstractThe mean ELP was calculated using the traditional (mean ELP(s) 5.59 mm ± 0.52 mm [SD]; mean ELP(h) 5.63 ± 0.42 mm) and K-independent (mean ELP(rs) 5.55 ± 0.42 mm; mean ELP(rh) ± SD 5.60 ± 0.36 mm) methods. Agreement between ELP(s) and ELP(rs) and between ELP(h) and ELP(rh) were represented by Bland-Altman plots, with mean differences (± 1.96 SD) of 0.06 ± 0.65 mm (range -0.59 to +0.71 mm; P=.08) in association with ELP(rs) and -0.04 ± 0.39 mm (range -0.43 to +0.35 mm; P=.08) in association with ELP(rh). The mean absolute error for ELP(s) versus ELP(rs) estimation and for ELP(h) versus ELP(rh) estimation was 0.242 ± 0.222 mm (range 0.001 to 1.272 mm) and 0.152 ± 0.137 mm (range 0.001 to 0.814 mm), respectively.
dc.description.abstractThis study confirms that the K-independent ELP estimation method is comparable to traditional K-dependent methods and may be useful in post-refractive surgery patients.
dc.language.isoenen
dc.subject.meshAdult
dc.subject.meshAged
dc.subject.meshAged, 80 and over
dc.subject.meshAnterior Chamber
dc.subject.meshBiometry
dc.subject.meshCapsulorhexis
dc.subject.meshCataract
dc.subject.meshCornea
dc.subject.meshDiagnostic Techniques, Ophthalmological
dc.subject.meshHumans
dc.subject.meshLens Implantation, Intraocular
dc.subject.meshLenses, Intraocular
dc.subject.meshMiddle Aged
dc.subject.meshPhacoemulsification
dc.subject.meshPhotography
dc.subject.meshProspective Studies
dc.subject.meshRefraction, Ocular
dc.subject.meshVisual Acuity
dc.titleEstimation of effective lens position using a method independent of preoperative keratometry readings.en
dc.typeArticleen
dc.contributor.departmentDepartment of Ophthalmology, Waterford Regional Hospital, Institute of Eye Surgery, Dublin, Ireland. iandooley@eustace.neten
dc.identifier.journalJournal of cataract and refractive surgeryen
dc.description.provinceMunster
refterms.dateFOA2019-04-04T02:23:14Z
html.description.abstractTo evaluate the validity of a keratometry (K)-independent method of estimating effective lens position (ELP) before phacoemulsification cataract surgery.
html.description.abstractInstitute of Eye Surgery, Whitfield Clinic, Waterford, Ireland.
html.description.abstractEvaluation of diagnostic test or technology.
html.description.abstractThe anterior chamber diameter and corneal height in eyes scheduled for cataract surgery were measured with a rotating Scheimpflug camera. Corneal height and anterior chamber diameter were used to estimate the ELP in a K-independent method (using the SRK/T [ELP(rs)] and Holladay 1 [ELP(rh)] formulas).
html.description.abstractThe mean ELP was calculated using the traditional (mean ELP(s) 5.59 mm ± 0.52 mm [SD]; mean ELP(h) 5.63 ± 0.42 mm) and K-independent (mean ELP(rs) 5.55 ± 0.42 mm; mean ELP(rh) ± SD 5.60 ± 0.36 mm) methods. Agreement between ELP(s) and ELP(rs) and between ELP(h) and ELP(rh) were represented by Bland-Altman plots, with mean differences (± 1.96 SD) of 0.06 ± 0.65 mm (range -0.59 to +0.71 mm; P=.08) in association with ELP(rs) and -0.04 ± 0.39 mm (range -0.43 to +0.35 mm; P=.08) in association with ELP(rh). The mean absolute error for ELP(s) versus ELP(rs) estimation and for ELP(h) versus ELP(rh) estimation was 0.242 ± 0.222 mm (range 0.001 to 1.272 mm) and 0.152 ± 0.137 mm (range 0.001 to 0.814 mm), respectively.
html.description.abstractThis study confirms that the K-independent ELP estimation method is comparable to traditional K-dependent methods and may be useful in post-refractive surgery patients.


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