Response to: WaveLight® Contoura topography-guided planning: contribution of anterior corneal higher-order aberrations and posterior corneal astigmatism to manifest refractive astigmatism

Response to: WaveLight® Contoura topography-guided planning: contribution of anterior corneal higher-order aberrations and posterior corneal astigmatism to manifest refractive astigmatism

Manoj Motwani Motwani Lasik Institute, San Diego, CA, USA I would like to thank Wallerstein et al1 for his thoughtful research letter, but I do have some issue with the analysis. The paper references only Part 1 of the LYRA Protocol series, and not the other two parts. Part 3 provides the...

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Autor principal: Motwani M
Formato: article
Lenguaje:EN
Publicado: Dove Medical Press 2018
Materias:
Topographic guided ablation
LYRA Protocol
Contoura
Posterior Corneal Astigmatism
Lenticular Astigmatism.
Ophthalmology
RE1-994
Acceso en línea:https://doaj.org/article/b883e6000c4e4bbea5fa931ebce4a48d
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spelling oai:doaj.org-article:b883e6000c4e4bbea5fa931ebce4a48d2021-12-02T04:31:23ZResponse to: WaveLight® Contoura topography-guided planning: contribution of anterior corneal higher-order aberrations and posterior corneal astigmatism to manifest refractive astigmatism1177-5483https://doaj.org/article/b883e6000c4e4bbea5fa931ebce4a48d2018-10-01T00:00:00Zhttps://www.dovepress.com/response-to-wavelightreg-contoura-topography-guided-planning-contribut-peer-reviewed-article-OPTHhttps://doaj.org/toc/1177-5483Manoj Motwani Motwani Lasik Institute, San Diego, CA, USA I would like to thank Wallerstein et al1 for his thoughtful research letter, but I do have some issue with the analysis. The paper references only Part 1 of the LYRA Protocol series, and not the other two parts. Part 3 provides the data for treatment with Contoura-measured astigmatism using the LYRA Protocol (termed anterior corneal astigmatism [ACA]). The concept of anterior corneal higher-order aberrations (CHOA) modifying the manifest refractive astigmatism (RA) was illustrated in an ovalization form to demonstrate why the LYRA Protocol works. These interactions are three-dimensional (3D) in nature, and we are demonstrating with 2D CHOA maps from Contoura. These maps are impacted by user/technical error, and also by epithe¬lial compensation of the CHOA, adding a layer of inaccuracy in these comparisons. In fact, the concept of epithelial compensation affecting the ability to measure and treat CHOA is not part of any current refractive system, Contoura, Ray tracing, etc. The static Gullstrand model has mainly been used, ignoring the fact that epithelial compensation causes variability. View the original paper by Wallerstein and colleagues.  Motwani MDove Medical PressarticleTopographic guided ablationLYRA ProtocolContouraPosterior Corneal AstigmatismLenticular Astigmatism.OphthalmologyRE1-994ENClinical Ophthalmology, Vol Volume 12, Pp 2001-2004 (2018)
institution DOAJ
collection DOAJ
language EN
topic Topographic guided ablation
LYRA Protocol
Contoura
Posterior Corneal Astigmatism
Lenticular Astigmatism.
Ophthalmology
RE1-994
spellingShingle Topographic guided ablation
LYRA Protocol
Contoura
Posterior Corneal Astigmatism
Lenticular Astigmatism.
Ophthalmology
RE1-994
Motwani M
Response to: WaveLight® Contoura topography-guided planning: contribution of anterior corneal higher-order aberrations and posterior corneal astigmatism to manifest refractive astigmatism
description Manoj Motwani Motwani Lasik Institute, San Diego, CA, USA I would like to thank Wallerstein et al1 for his thoughtful research letter, but I do have some issue with the analysis. The paper references only Part 1 of the LYRA Protocol series, and not the other two parts. Part 3 provides the data for treatment with Contoura-measured astigmatism using the LYRA Protocol (termed anterior corneal astigmatism [ACA]). The concept of anterior corneal higher-order aberrations (CHOA) modifying the manifest refractive astigmatism (RA) was illustrated in an ovalization form to demonstrate why the LYRA Protocol works. These interactions are three-dimensional (3D) in nature, and we are demonstrating with 2D CHOA maps from Contoura. These maps are impacted by user/technical error, and also by epithe¬lial compensation of the CHOA, adding a layer of inaccuracy in these comparisons. In fact, the concept of epithelial compensation affecting the ability to measure and treat CHOA is not part of any current refractive system, Contoura, Ray tracing, etc. The static Gullstrand model has mainly been used, ignoring the fact that epithelial compensation causes variability. View the original paper by Wallerstein and colleagues.  
format article
author Motwani M
author_facet Motwani M
author_sort Motwani M
title Response to: WaveLight® Contoura topography-guided planning: contribution of anterior corneal higher-order aberrations and posterior corneal astigmatism to manifest refractive astigmatism
title_short Response to: WaveLight® Contoura topography-guided planning: contribution of anterior corneal higher-order aberrations and posterior corneal astigmatism to manifest refractive astigmatism
title_full Response to: WaveLight® Contoura topography-guided planning: contribution of anterior corneal higher-order aberrations and posterior corneal astigmatism to manifest refractive astigmatism
title_fullStr Response to: WaveLight® Contoura topography-guided planning: contribution of anterior corneal higher-order aberrations and posterior corneal astigmatism to manifest refractive astigmatism
title_full_unstemmed Response to: WaveLight® Contoura topography-guided planning: contribution of anterior corneal higher-order aberrations and posterior corneal astigmatism to manifest refractive astigmatism
title_sort response to: wavelight® contoura topography-guided planning: contribution of anterior corneal higher-order aberrations and posterior corneal astigmatism to manifest refractive astigmatism
publisher Dove Medical Press
publishDate 2018
url https://doaj.org/article/b883e6000c4e4bbea5fa931ebce4a48d
work_keys_str_mv AT motwanim responsetowavelightregcontouratopographyguidedplanningcontributionofanteriorcornealhigherorderaberrationsandposteriorcornealastigmatismtomanifestrefractiveastigmatism
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