$The Impact of Image Registration for Ablation Orientation on Clinical Outcomes After Wavefront-Optimized Refractive Surgery in Eyes with Myopia and Astigmatism$
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The Impact of Image Registration for Ablation Orientation on Clinical Outcomes After Wavefront-Optimized Refractive Surgery in Eyes with Myopia and Astigmatism

Phillip B Brunson,1 Paul M Mann II,1 Paul Michael Mann,1 Richard Potvin2 1Mann Eye Institute and Laser Centers, Houston, TX, USA; 2Science in Vision, Bend, OR, USACorrespondence: Phillip B BrunsonMann Eye Institute and Laser Centers, 5115 Main Street, Suite #300, Houston, TX 77002, USAEmail phillip....

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Autores principales:	Brunson PB, Mann PM II, Mann PM, Potvin R
Formato:	article
Lenguaje:	EN
Publicado:	Dove Medical Press 2020
Materias:	lasik laser refractive surgery cyclotorsion iris registration astigmatism vario Ophthalmology RE1-994
Acceso en línea:	https://doaj.org/article/847e039477e04cb8a0ca3a1315bdcda3
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spelling	oai:doaj.org-article:847e039477e04cb8a0ca3a1315bdcda32021-12-02T16:03:02ZThe Impact of Image Registration for Ablation Orientation on Clinical Outcomes After Wavefront-Optimized Refractive Surgery in Eyes with Myopia and Astigmatism1177-5483https://doaj.org/article/847e039477e04cb8a0ca3a1315bdcda32020-11-01T00:00:00Zhttps://www.dovepress.com/the-impact-of-image-registration-for-ablation-orientation-on-clinical--peer-reviewed-article-OPTHhttps://doaj.org/toc/1177-5483Phillip B Brunson,1 Paul M Mann II,1 Paul Michael Mann,1 Richard Potvin2 1Mann Eye Institute and Laser Centers, Houston, TX, USA; 2Science in Vision, Bend, OR, USACorrespondence: Phillip B BrunsonMann Eye Institute and Laser Centers, 5115 Main Street, Suite #300, Houston, TX 77002, USAEmail phillip.brunson@manneye.comPurpose: To compare the clinical outcomes from laser refractive surgery performed with the same laser with and without incorporating iris registration technology to compensate for ocular cyclotorsion.Design: Single-site, two-arm, retrospective chart review.Methods: Clinical outcomes at a single site after wavefront-optimized LASIK using the Wavelight excimer laser with and without the Vario imaging system for iris registration (IR) were evaluated. Eligible subjects were those that received on-label wavefront-optimized treatment of myopia with astigmatism > 1.5 D. Measures of interest were the amount of residual refractive cylinder after surgery, the refractive error, and the best-corrected (BCVA) and uncorrected (UCVA) visual acuities, with a target follow-up of around 90 days.Results: A total of 112 eligible eyes that were treated with IR and 126 similar eyes treated without IR (NO IR) were included. The refractive sphere and spherical equivalent refractions were statistically significantly different between groups (p < 0.05), but the mean differences were < 0.1 D in both cases. Refractive cylinder averaged around 0.12 D and was not statistically significantly different between groups. The number of eyes with residual cylinder > 0.50 D was higher in the NO IR group vs the IR group (6% vs 1%, respectively, p = 0.04). The mean logMAR UCVA and BCVA were statistically significantly better in the IR group, with a difference of 1.5 letters for UCVA and 1.0 letters for BCVA (p < 0.001 for both). Significantly more eyes in the IR group had a UCVA (p = 0.01) and a BCVA of 20/15 or better (p = 0.003). Overall, 96% of eyes in the IR group and 91% of eyes in the NO IR group had uncorrected visual acuity of 20/20 or better.Conclusion: Iris registration with the VARIO imaging device demonstrably reduced the overall variability in clinical outcomes.Keywords: LASIK, laser refractive surgery, cyclotorsion, iris registration, astigmatism, VARIOBrunson PBMann PM IIMann PMPotvin RDove Medical Pressarticlelasiklaser refractive surgerycyclotorsioniris registrationastigmatismvarioOphthalmologyRE1-994ENClinical Ophthalmology, Vol Volume 14, Pp 3983-3990 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	lasik laser refractive surgery cyclotorsion iris registration astigmatism vario Ophthalmology RE1-994
spellingShingle	lasik laser refractive surgery cyclotorsion iris registration astigmatism vario Ophthalmology RE1-994 Brunson PB Mann PM II Mann PM Potvin R The Impact of Image Registration for Ablation Orientation on Clinical Outcomes After Wavefront-Optimized Refractive Surgery in Eyes with Myopia and Astigmatism
description	Phillip B Brunson,1 Paul M Mann II,1 Paul Michael Mann,1 Richard Potvin2 1Mann Eye Institute and Laser Centers, Houston, TX, USA; 2Science in Vision, Bend, OR, USACorrespondence: Phillip B BrunsonMann Eye Institute and Laser Centers, 5115 Main Street, Suite #300, Houston, TX 77002, USAEmail phillip.brunson@manneye.comPurpose: To compare the clinical outcomes from laser refractive surgery performed with the same laser with and without incorporating iris registration technology to compensate for ocular cyclotorsion.Design: Single-site, two-arm, retrospective chart review.Methods: Clinical outcomes at a single site after wavefront-optimized LASIK using the Wavelight excimer laser with and without the Vario imaging system for iris registration (IR) were evaluated. Eligible subjects were those that received on-label wavefront-optimized treatment of myopia with astigmatism > 1.5 D. Measures of interest were the amount of residual refractive cylinder after surgery, the refractive error, and the best-corrected (BCVA) and uncorrected (UCVA) visual acuities, with a target follow-up of around 90 days.Results: A total of 112 eligible eyes that were treated with IR and 126 similar eyes treated without IR (NO IR) were included. The refractive sphere and spherical equivalent refractions were statistically significantly different between groups (p < 0.05), but the mean differences were < 0.1 D in both cases. Refractive cylinder averaged around 0.12 D and was not statistically significantly different between groups. The number of eyes with residual cylinder > 0.50 D was higher in the NO IR group vs the IR group (6% vs 1%, respectively, p = 0.04). The mean logMAR UCVA and BCVA were statistically significantly better in the IR group, with a difference of 1.5 letters for UCVA and 1.0 letters for BCVA (p < 0.001 for both). Significantly more eyes in the IR group had a UCVA (p = 0.01) and a BCVA of 20/15 or better (p = 0.003). Overall, 96% of eyes in the IR group and 91% of eyes in the NO IR group had uncorrected visual acuity of 20/20 or better.Conclusion: Iris registration with the VARIO imaging device demonstrably reduced the overall variability in clinical outcomes.Keywords: LASIK, laser refractive surgery, cyclotorsion, iris registration, astigmatism, VARIO
format	article
author	Brunson PB Mann PM II Mann PM Potvin R
author_facet	Brunson PB Mann PM II Mann PM Potvin R
author_sort	Brunson PB
title	The Impact of Image Registration for Ablation Orientation on Clinical Outcomes After Wavefront-Optimized Refractive Surgery in Eyes with Myopia and Astigmatism
title_short	The Impact of Image Registration for Ablation Orientation on Clinical Outcomes After Wavefront-Optimized Refractive Surgery in Eyes with Myopia and Astigmatism
title_full	The Impact of Image Registration for Ablation Orientation on Clinical Outcomes After Wavefront-Optimized Refractive Surgery in Eyes with Myopia and Astigmatism
title_fullStr	The Impact of Image Registration for Ablation Orientation on Clinical Outcomes After Wavefront-Optimized Refractive Surgery in Eyes with Myopia and Astigmatism
title_full_unstemmed	The Impact of Image Registration for Ablation Orientation on Clinical Outcomes After Wavefront-Optimized Refractive Surgery in Eyes with Myopia and Astigmatism
title_sort	impact of image registration for ablation orientation on clinical outcomes after wavefront-optimized refractive surgery in eyes with myopia and astigmatism
publisher	Dove Medical Press
publishDate	2020
url	https://doaj.org/article/847e039477e04cb8a0ca3a1315bdcda3
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The Impact of Image Registration for Ablation Orientation on Clinical Outcomes After Wavefront-Optimized Refractive Surgery in Eyes with Myopia and Astigmatism

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