Disagreement Between Theoretical and Actual Phorcides Outcomes: Is Phorcides Inferior to Treating on the Manifest Refraction? [Letter]

Disagreement Between Theoretical and Actual Phorcides Outcomes: Is Phorcides Inferior to Treating on the Manifest Refraction? [Letter]

Avi Wallerstein,1,2,* Mathieu Gauvin1,2,* 1Department of Ophthalmology and Visual Sciences, McGill University, Montreal, QC, Canada; 2Department of Research & Development, LASIK MD, Montreal, QC, Canada*These authors contributed equally to this workCorrespondence: Avi WallersteinMD Level, 12...

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Autores principales: Wallerstein A, Gauvin M
Formato: article
Lenguaje:EN
Publicado: Dove Medical Press 2020
Materias:
phorcides
topography-guided
lasik
manifest refraction
lyra protocol
Ophthalmology
RE1-994
Acceso en línea:https://doaj.org/article/74f4d81ad7af44409149d98e9bd7a3a5
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spelling oai:doaj.org-article:74f4d81ad7af44409149d98e9bd7a3a52021-12-02T11:10:06ZDisagreement Between Theoretical and Actual Phorcides Outcomes: Is Phorcides Inferior to Treating on the Manifest Refraction? [Letter]1177-5483https://doaj.org/article/74f4d81ad7af44409149d98e9bd7a3a52020-11-01T00:00:00Zhttps://www.dovepress.com/disagreement-between-theoretical-and-actual-phorcides-outcomes-is-phor-peer-reviewed-article-OPTHhttps://doaj.org/toc/1177-5483Avi Wallerstein,1,2,* Mathieu Gauvin1,2,* 1Department of Ophthalmology and Visual Sciences, McGill University, Montreal, QC, Canada; 2Department of Research & Development, LASIK MD, Montreal, QC, Canada*These authors contributed equally to this workCorrespondence: Avi WallersteinMD Level, 1250 Rene-Levesque Blvd W, Montreal, QC H3B 4W8, CanadaTel +1 514-908-9888 Ext 2273Email awallerstein@lasikmd.com We read with interest “Topography-Guided Refractive Astigmatism Outcomes: Predictions Comparing Three Different Programming Methods.”1 In the Manifest group, the calculated theoretical outcomes revealed an unexpectedly elevated postoperative refractive astigmatism average error of 0.56 ± 0.22 D.1 This large amount of theoretical postoperative cylinder was not replicated in a recent real-world clinical study by the same authors, comparing actual topography-guided LASIK outcomes in Phorcides versus manifest-treated eyes.2 The reported empirical postoperative astigmatism error average in the Manifest group was as  low as 0.15 D, fourfold better than that reported in the current theoretical outcomes study.1   View the original paper by Stulting and colleagues  Wallerstein AGauvin MDove Medical Pressarticlephorcidestopography-guidedlasikmanifest refractionlyra protocolOphthalmologyRE1-994ENClinical Ophthalmology, Vol Volume 14, Pp 3829-3830 (2020)
institution DOAJ
collection DOAJ
language EN
topic phorcides
topography-guided
lasik
manifest refraction
lyra protocol
Ophthalmology
RE1-994
spellingShingle phorcides
topography-guided
lasik
manifest refraction
lyra protocol
Ophthalmology
RE1-994
Wallerstein A
Gauvin M
Disagreement Between Theoretical and Actual Phorcides Outcomes: Is Phorcides Inferior to Treating on the Manifest Refraction? [Letter]
description Avi Wallerstein,1,2,* Mathieu Gauvin1,2,* 1Department of Ophthalmology and Visual Sciences, McGill University, Montreal, QC, Canada; 2Department of Research & Development, LASIK MD, Montreal, QC, Canada*These authors contributed equally to this workCorrespondence: Avi WallersteinMD Level, 1250 Rene-Levesque Blvd W, Montreal, QC H3B 4W8, CanadaTel +1 514-908-9888 Ext 2273Email awallerstein@lasikmd.com We read with interest “Topography-Guided Refractive Astigmatism Outcomes: Predictions Comparing Three Different Programming Methods.”1 In the Manifest group, the calculated theoretical outcomes revealed an unexpectedly elevated postoperative refractive astigmatism average error of 0.56 ± 0.22 D.1 This large amount of theoretical postoperative cylinder was not replicated in a recent real-world clinical study by the same authors, comparing actual topography-guided LASIK outcomes in Phorcides versus manifest-treated eyes.2 The reported empirical postoperative astigmatism error average in the Manifest group was as  low as 0.15 D, fourfold better than that reported in the current theoretical outcomes study.1   View the original paper by Stulting and colleagues  
format article
author Wallerstein A
Gauvin M
author_facet Wallerstein A
Gauvin M
author_sort Wallerstein A
title Disagreement Between Theoretical and Actual Phorcides Outcomes: Is Phorcides Inferior to Treating on the Manifest Refraction? [Letter]
title_short Disagreement Between Theoretical and Actual Phorcides Outcomes: Is Phorcides Inferior to Treating on the Manifest Refraction? [Letter]
title_full Disagreement Between Theoretical and Actual Phorcides Outcomes: Is Phorcides Inferior to Treating on the Manifest Refraction? [Letter]
title_fullStr Disagreement Between Theoretical and Actual Phorcides Outcomes: Is Phorcides Inferior to Treating on the Manifest Refraction? [Letter]
title_full_unstemmed Disagreement Between Theoretical and Actual Phorcides Outcomes: Is Phorcides Inferior to Treating on the Manifest Refraction? [Letter]
title_sort disagreement between theoretical and actual phorcides outcomes: is phorcides inferior to treating on the manifest refraction? [letter]
publisher Dove Medical Press
publishDate 2020
url https://doaj.org/article/74f4d81ad7af44409149d98e9bd7a3a5
work_keys_str_mv AT wallersteina disagreementbetweentheoreticalandactualphorcidesoutcomesisphorcidesinferiortotreatingonthemanifestrefractionletter
AT gauvinm disagreementbetweentheoreticalandactualphorcidesoutcomesisphorcidesinferiortotreatingonthemanifestrefractionletter
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