Clinical Outcomes and Lens Constant Optimization of the Zeiss CT Lucia 602 Lens Using a Modified Yamane Technique

Edward L Randerson,1 Joseph D Bogaard,1 Lisa R Koenig,2 Eileen S Hwang,3 Clinton C Warren,1 Steven B Koenig1 1Department of Ophthalmology, Froedtert and the Medical College of Wisconsin, Milwaukee, WI, USA; 2Weill Cornell Medical College, New York, NY, USA; 3Department of Ophthalmology & Vis...

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Autores principales:	Randerson EL, Bogaard JD, Koenig LR, Hwang ES, Warren CC, Koenig SB
Formato:	article
Lenguaje:	EN
Publicado:	Dove Medical Press 2020
Materias:	yamane technique scleral lens fixation secondary lens implantation sutureless iol fixation Ophthalmology RE1-994
Acceso en línea:	https://doaj.org/article/beeb8e30d5e54425b4ddda87e288cdb3
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spelling	oai:doaj.org-article:beeb8e30d5e54425b4ddda87e288cdb32021-12-02T12:09:28ZClinical Outcomes and Lens Constant Optimization of the Zeiss CT Lucia 602 Lens Using a Modified Yamane Technique1177-5483https://doaj.org/article/beeb8e30d5e54425b4ddda87e288cdb32020-11-01T00:00:00Zhttps://www.dovepress.com/clinical-outcomes-and-lens-constant-optimization-of-the-zeiss-ct-lucia-peer-reviewed-article-OPTHhttps://doaj.org/toc/1177-5483Edward L Randerson,1 Joseph D Bogaard,1 Lisa R Koenig,2 Eileen S Hwang,3 Clinton C Warren,1 Steven B Koenig1 1Department of Ophthalmology, Froedtert and the Medical College of Wisconsin, Milwaukee, WI, USA; 2Weill Cornell Medical College, New York, NY, USA; 3Department of Ophthalmology & Visual Sciences, University of Utah, Salt Lake City, UT, USACorrespondence: Steven B Koenig Tel +1 414 228-1653Email sbkoenig52@gmail.comPurpose: To report the clinical and refractive outcomes of a modified Yamane technique for scleral fixation of the CT Lucia 602 lens.Design: Retrospective case series.Patients: One hundred twenty-one eyes with dislocated posterior chamber lens implants, surgical aphakia, subluxed crystalline lenses, capsular tear, anterior chamber, or iris sutured posterior chamber lens intolerance were included.Methods: Secondary implantation of the Zeiss CT Lucia 602 lens was performed by a single surgeon using a modified Yamane technique employing a single needle, rather than the double-needle approach. One hundred twelve eyes underwent simultaneous 3 port pars plana vitrectomy and 9 eyes had previously undergone posterior vitrectomy surgery. Exclusion criteria were age < 18, simultaneous glaucoma or corneal procedures, staged corneal transplantation, and follow-up < 30 days.Main Outcome Measures: A paired t-test was used to compare pre- and post-operative corrected distance visual acuity (CDVA), the mean predictive error, and the mean absolute predictive error between the manufacturer’s and optimized constants for Hoffer Q, Holladay I, and SRK/T. Complication rates were reported.Results: One hundred twenty-one consecutive eyes with a mean follow-up of 237 days were included. The pre-operative CDVA was 0.871 ± 0.785 logMAR (mean ± standard deviation, Snellen equivalent 20/149), which improved to 0.401 ± 0.608 (Snellen equivalent 20/50) post-operatively. In 109 eyes with reliable postoperative refractions, the mean predictive refractive error (D) ± std was +0.74 ± 1.37 for Hoffer Q, +0.66 ± 1.41 for Holladay 1, and +0.47 ± 1.49 for SRK/T (p< 0.05). Refractive outcome analysis yielded a mean optimized personalized anterior chamber depth (pACD) of 5.69, Surgeon Factor of 1.79, and A constant of 118.56. Vision-limiting complications occurred in 11 eyes (9.1%).Conclusion: Scleral fixation of the CT Lucia 602 lens using a single-needle modification of the Yamane technique resulted in very good visual acuity, predictable postoperative refractive errors, but some vision-limiting complications in this heterogeneous group of eyes with significant comorbidities.Keywords: Yamane technique, scleral lens fixation, secondary lens implantation, sutureless IOL fixationRanderson ELBogaard JDKoenig LRHwang ESWarren CCKoenig SBDove Medical Pressarticleyamane techniquescleral lens fixationsecondary lens implantationsutureless iol fixationOphthalmologyRE1-994ENClinical Ophthalmology, Vol Volume 14, Pp 3903-3912 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	yamane technique scleral lens fixation secondary lens implantation sutureless iol fixation Ophthalmology RE1-994
spellingShingle	yamane technique scleral lens fixation secondary lens implantation sutureless iol fixation Ophthalmology RE1-994 Randerson EL Bogaard JD Koenig LR Hwang ES Warren CC Koenig SB Clinical Outcomes and Lens Constant Optimization of the Zeiss CT Lucia 602 Lens Using a Modified Yamane Technique
description	Edward L Randerson,1 Joseph D Bogaard,1 Lisa R Koenig,2 Eileen S Hwang,3 Clinton C Warren,1 Steven B Koenig1 1Department of Ophthalmology, Froedtert and the Medical College of Wisconsin, Milwaukee, WI, USA; 2Weill Cornell Medical College, New York, NY, USA; 3Department of Ophthalmology & Visual Sciences, University of Utah, Salt Lake City, UT, USACorrespondence: Steven B Koenig Tel +1 414 228-1653Email sbkoenig52@gmail.comPurpose: To report the clinical and refractive outcomes of a modified Yamane technique for scleral fixation of the CT Lucia 602 lens.Design: Retrospective case series.Patients: One hundred twenty-one eyes with dislocated posterior chamber lens implants, surgical aphakia, subluxed crystalline lenses, capsular tear, anterior chamber, or iris sutured posterior chamber lens intolerance were included.Methods: Secondary implantation of the Zeiss CT Lucia 602 lens was performed by a single surgeon using a modified Yamane technique employing a single needle, rather than the double-needle approach. One hundred twelve eyes underwent simultaneous 3 port pars plana vitrectomy and 9 eyes had previously undergone posterior vitrectomy surgery. Exclusion criteria were age < 18, simultaneous glaucoma or corneal procedures, staged corneal transplantation, and follow-up < 30 days.Main Outcome Measures: A paired t-test was used to compare pre- and post-operative corrected distance visual acuity (CDVA), the mean predictive error, and the mean absolute predictive error between the manufacturer’s and optimized constants for Hoffer Q, Holladay I, and SRK/T. Complication rates were reported.Results: One hundred twenty-one consecutive eyes with a mean follow-up of 237 days were included. The pre-operative CDVA was 0.871 ± 0.785 logMAR (mean ± standard deviation, Snellen equivalent 20/149), which improved to 0.401 ± 0.608 (Snellen equivalent 20/50) post-operatively. In 109 eyes with reliable postoperative refractions, the mean predictive refractive error (D) ± std was +0.74 ± 1.37 for Hoffer Q, +0.66 ± 1.41 for Holladay 1, and +0.47 ± 1.49 for SRK/T (p< 0.05). Refractive outcome analysis yielded a mean optimized personalized anterior chamber depth (pACD) of 5.69, Surgeon Factor of 1.79, and A constant of 118.56. Vision-limiting complications occurred in 11 eyes (9.1%).Conclusion: Scleral fixation of the CT Lucia 602 lens using a single-needle modification of the Yamane technique resulted in very good visual acuity, predictable postoperative refractive errors, but some vision-limiting complications in this heterogeneous group of eyes with significant comorbidities.Keywords: Yamane technique, scleral lens fixation, secondary lens implantation, sutureless IOL fixation
format	article
author	Randerson EL Bogaard JD Koenig LR Hwang ES Warren CC Koenig SB
author_facet	Randerson EL Bogaard JD Koenig LR Hwang ES Warren CC Koenig SB
author_sort	Randerson EL
title	Clinical Outcomes and Lens Constant Optimization of the Zeiss CT Lucia 602 Lens Using a Modified Yamane Technique
title_short	Clinical Outcomes and Lens Constant Optimization of the Zeiss CT Lucia 602 Lens Using a Modified Yamane Technique
title_full	Clinical Outcomes and Lens Constant Optimization of the Zeiss CT Lucia 602 Lens Using a Modified Yamane Technique
title_fullStr	Clinical Outcomes and Lens Constant Optimization of the Zeiss CT Lucia 602 Lens Using a Modified Yamane Technique
title_full_unstemmed	Clinical Outcomes and Lens Constant Optimization of the Zeiss CT Lucia 602 Lens Using a Modified Yamane Technique
title_sort	clinical outcomes and lens constant optimization of the zeiss ct lucia 602 lens using a modified yamane technique
publisher	Dove Medical Press
publishDate	2020
url	https://doaj.org/article/beeb8e30d5e54425b4ddda87e288cdb3
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Clinical Outcomes and Lens Constant Optimization of the Zeiss CT Lucia 602 Lens Using a Modified Yamane Technique

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