Clinically relevant differences in the selection of toric intraocular lens power in normal eyes: preoperative measurement vs intraoperative aberrometry

James A Davison,1 Sarah Makari,2 Richard Potvin21Wolfe Eye Clinic, Marshalltown, IA, USA; 2Science in Vision, Akron, NY, USAPurpose: To assess the value of intraoperative aberrometry (IA) in determining toric intraocular lens (IOL) power in eyes with no previous ocular surgery.Patients and methods:...

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Autores principales:	Davison JA, Makari S, Potvin R
Formato:	article
Lenguaje:	EN
Publicado:	Dove Medical Press 2019
Materias:	ORA refraction prediction error IOL power calculation astigmatism toric IOL Ophthalmology RE1-994
Acceso en línea:	https://doaj.org/article/dfdbbe40daa84f519b3560169b2b0abc
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spelling	oai:doaj.org-article:dfdbbe40daa84f519b3560169b2b0abc2021-12-02T10:43:25ZClinically relevant differences in the selection of toric intraocular lens power in normal eyes: preoperative measurement vs intraoperative aberrometry1177-5483https://doaj.org/article/dfdbbe40daa84f519b3560169b2b0abc2019-05-01T00:00:00Zhttps://www.dovepress.com/clinically-relevant-differences-in-the-selection-of-toric-intraocular--peer-reviewed-article-OPTHhttps://doaj.org/toc/1177-5483James A Davison,1 Sarah Makari,2 Richard Potvin21Wolfe Eye Clinic, Marshalltown, IA, USA; 2Science in Vision, Akron, NY, USAPurpose: To assess the value of intraoperative aberrometry (IA) in determining toric intraocular lens (IOL) power in eyes with no previous ocular surgery.Patients and methods: This was a retrospective data review at one US clinical site of eyes that underwent uncomplicated cataract surgery with toric IOL implantation where standard preoperative and IA measurements were available. Calculated IOL sphere and cylinder powers and orientation were compared based on the measurement method and the postoperative refraction, using both actual and simulated (back-calculated) results. Comparisons were between the surgeon’s preoperative calculations, IA measurements, the actual IOL implanted and results from the Barrett toric calculator.Results: There was no significant difference (p>0.7) in the number of eyes expected to have, or having, a spherical equivalent refraction within 0.50D of the target between Actual (92%), IA (93%) or Preoperative calculation results (86%). The percentage of eyes with expected residual refractive astigmatism ≤0.50D was significantly higher for the IA vs Preoperative calculations (75% vs 53%, p<0.01). There was no significant difference in expected results between the Actual, IA and Barrett toric calculations (p>0.65).Conclusion: Modern IOL calculations for sphere produced results comparable to those achieved with IA. The value of IA in determining IOL cylinder power and orientation was more evident when comparing expected results between IA and a preoperative method based on measured total corneal astigmatism than when comparing to expected results from the Barrett toric calculator.Keywords: ORA, refraction, prediction error, IOL power calculation, astigmatism, toric IOLDavison JAMakari SPotvin RDove Medical PressarticleORArefractionprediction errorIOL power calculationastigmatismtoric IOLOphthalmologyRE1-994ENClinical Ophthalmology, Vol Volume 13, Pp 913-920 (2019)
institution	DOAJ
collection	DOAJ
language	EN
topic	ORA refraction prediction error IOL power calculation astigmatism toric IOL Ophthalmology RE1-994
spellingShingle	ORA refraction prediction error IOL power calculation astigmatism toric IOL Ophthalmology RE1-994 Davison JA Makari S Potvin R Clinically relevant differences in the selection of toric intraocular lens power in normal eyes: preoperative measurement vs intraoperative aberrometry
description	James A Davison,1 Sarah Makari,2 Richard Potvin21Wolfe Eye Clinic, Marshalltown, IA, USA; 2Science in Vision, Akron, NY, USAPurpose: To assess the value of intraoperative aberrometry (IA) in determining toric intraocular lens (IOL) power in eyes with no previous ocular surgery.Patients and methods: This was a retrospective data review at one US clinical site of eyes that underwent uncomplicated cataract surgery with toric IOL implantation where standard preoperative and IA measurements were available. Calculated IOL sphere and cylinder powers and orientation were compared based on the measurement method and the postoperative refraction, using both actual and simulated (back-calculated) results. Comparisons were between the surgeon’s preoperative calculations, IA measurements, the actual IOL implanted and results from the Barrett toric calculator.Results: There was no significant difference (p>0.7) in the number of eyes expected to have, or having, a spherical equivalent refraction within 0.50D of the target between Actual (92%), IA (93%) or Preoperative calculation results (86%). The percentage of eyes with expected residual refractive astigmatism ≤0.50D was significantly higher for the IA vs Preoperative calculations (75% vs 53%, p<0.01). There was no significant difference in expected results between the Actual, IA and Barrett toric calculations (p>0.65).Conclusion: Modern IOL calculations for sphere produced results comparable to those achieved with IA. The value of IA in determining IOL cylinder power and orientation was more evident when comparing expected results between IA and a preoperative method based on measured total corneal astigmatism than when comparing to expected results from the Barrett toric calculator.Keywords: ORA, refraction, prediction error, IOL power calculation, astigmatism, toric IOL
format	article
author	Davison JA Makari S Potvin R
author_facet	Davison JA Makari S Potvin R
author_sort	Davison JA
title	Clinically relevant differences in the selection of toric intraocular lens power in normal eyes: preoperative measurement vs intraoperative aberrometry
title_short	Clinically relevant differences in the selection of toric intraocular lens power in normal eyes: preoperative measurement vs intraoperative aberrometry
title_full	Clinically relevant differences in the selection of toric intraocular lens power in normal eyes: preoperative measurement vs intraoperative aberrometry
title_fullStr	Clinically relevant differences in the selection of toric intraocular lens power in normal eyes: preoperative measurement vs intraoperative aberrometry
title_full_unstemmed	Clinically relevant differences in the selection of toric intraocular lens power in normal eyes: preoperative measurement vs intraoperative aberrometry
title_sort	clinically relevant differences in the selection of toric intraocular lens power in normal eyes: preoperative measurement vs intraoperative aberrometry
publisher	Dove Medical Press
publishDate	2019
url	https://doaj.org/article/dfdbbe40daa84f519b3560169b2b0abc
work_keys_str_mv	AT davisonja clinicallyrelevantdifferencesintheselectionoftoricintraocularlenspowerinnormaleyespreoperativemeasurementvsintraoperativeaberrometry AT makaris clinicallyrelevantdifferencesintheselectionoftoricintraocularlenspowerinnormaleyespreoperativemeasurementvsintraoperativeaberrometry AT potvinr clinicallyrelevantdifferencesintheselectionoftoricintraocularlenspowerinnormaleyespreoperativemeasurementvsintraoperativeaberrometry
_version_	1718396857548275712

Clinically relevant differences in the selection of toric intraocular lens power in normal eyes: preoperative measurement vs intraoperative aberrometry

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