Clinical outcomes of wavefront-guided laser in situ keratomileusis to treat moderate-to-high astigmatism

Steven C Schallhorn,1,2 Jan A Venter,2 Stephen J Hannan,2 Keith A Hettinger2 1University of California, San Francisco, CA, USA; 2Optical Express, Glasgow, UK Purpose: The purpose of this study was to evaluate the refractive and visual outcomes of wavefront-guided laser in situ keratomileusis (LASI...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Schallhorn SC, Venter JA, Hannan SJ, Hettinger KA
Formato:	article
Lenguaje:	EN
Publicado:	Dove Medical Press 2015
Materias:	Ophthalmology RE1-994
Acceso en línea:	https://doaj.org/article/5ef72542ce264c8d9f461bedbfa25634
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:5ef72542ce264c8d9f461bedbfa25634
record_format	dspace
spelling	oai:doaj.org-article:5ef72542ce264c8d9f461bedbfa256342021-12-02T04:10:44ZClinical outcomes of wavefront-guided laser in situ keratomileusis to treat moderate-to-high astigmatism1177-5483https://doaj.org/article/5ef72542ce264c8d9f461bedbfa256342015-07-01T00:00:00Zhttp://www.dovepress.com/clinical-outcomes-of-wavefront-guided-laser-in-situ-keratomileusis-to--peer-reviewed-article-OPTHhttps://doaj.org/toc/1177-5483Steven C Schallhorn,1,2 Jan A Venter,2 Stephen J Hannan,2 Keith A Hettinger2 1University of California, San Francisco, CA, USA; 2Optical Express, Glasgow, UK Purpose: The purpose of this study was to evaluate the refractive and visual outcomes of wavefront-guided laser in situ keratomileusis (LASIK) in eyes with myopic astigmatism and cylindrical component ≥2.0 diopter (D).Methods: In this retrospective study, 611 eyes that underwent LASIK for simple or compound myopic astigmatism were analyzed. Preoperative refractive cylinder ranged from -2.00 D to -6.00 D (mean -2.76±0.81 D), and the sphere was between 0.00 D and -9.75 D (mean -2.79±2.32 D). Predictability, visual outcomes, and vector analysis of changes in refractive astigmatism were evaluated.Results: At 3 months after LASIK, 83.8% of eyes had uncorrected distance visual acuity of 20/20 or better, 90.3% had manifest spherical equivalent within ±0.50 D, and 79.1% had residual refractive cylinder within ±0.50 D of intended correction. The mean correction ratio for refractive cylinder was 0.92±0.14, the mean error of angle was -0.45°±2.99°, and the mean error vector was 0.37±0.38 D. A statistically significant correlation was found between the error of magnitude (arithmetic difference in the magnitudes between surgically induced refractive correction and intended refractive correction) and the intended refractive correction (r=0.26, P<0.01).Conclusion: Wavefront-guided LASIK for the correction of myopic astigmatism is safe, effective, and predictable. Keywords: myopic astigmatism, wavefront-guided LASIK, Hartmann–Shack aberrometerSchallhorn SCVenter JAHannan SJHettinger KADove Medical PressarticleOphthalmologyRE1-994ENClinical Ophthalmology, Vol 2015, Iss default, Pp 1291-1298 (2015)
institution	DOAJ
collection	DOAJ
language	EN
topic	Ophthalmology RE1-994
spellingShingle	Ophthalmology RE1-994 Schallhorn SC Venter JA Hannan SJ Hettinger KA Clinical outcomes of wavefront-guided laser in situ keratomileusis to treat moderate-to-high astigmatism
description	Steven C Schallhorn,1,2 Jan A Venter,2 Stephen J Hannan,2 Keith A Hettinger2 1University of California, San Francisco, CA, USA; 2Optical Express, Glasgow, UK Purpose: The purpose of this study was to evaluate the refractive and visual outcomes of wavefront-guided laser in situ keratomileusis (LASIK) in eyes with myopic astigmatism and cylindrical component ≥2.0 diopter (D).Methods: In this retrospective study, 611 eyes that underwent LASIK for simple or compound myopic astigmatism were analyzed. Preoperative refractive cylinder ranged from -2.00 D to -6.00 D (mean -2.76±0.81 D), and the sphere was between 0.00 D and -9.75 D (mean -2.79±2.32 D). Predictability, visual outcomes, and vector analysis of changes in refractive astigmatism were evaluated.Results: At 3 months after LASIK, 83.8% of eyes had uncorrected distance visual acuity of 20/20 or better, 90.3% had manifest spherical equivalent within ±0.50 D, and 79.1% had residual refractive cylinder within ±0.50 D of intended correction. The mean correction ratio for refractive cylinder was 0.92±0.14, the mean error of angle was -0.45°±2.99°, and the mean error vector was 0.37±0.38 D. A statistically significant correlation was found between the error of magnitude (arithmetic difference in the magnitudes between surgically induced refractive correction and intended refractive correction) and the intended refractive correction (r=0.26, P<0.01).Conclusion: Wavefront-guided LASIK for the correction of myopic astigmatism is safe, effective, and predictable. Keywords: myopic astigmatism, wavefront-guided LASIK, Hartmann–Shack aberrometer
format	article
author	Schallhorn SC Venter JA Hannan SJ Hettinger KA
author_facet	Schallhorn SC Venter JA Hannan SJ Hettinger KA
author_sort	Schallhorn SC
title	Clinical outcomes of wavefront-guided laser in situ keratomileusis to treat moderate-to-high astigmatism
title_short	Clinical outcomes of wavefront-guided laser in situ keratomileusis to treat moderate-to-high astigmatism
title_full	Clinical outcomes of wavefront-guided laser in situ keratomileusis to treat moderate-to-high astigmatism
title_fullStr	Clinical outcomes of wavefront-guided laser in situ keratomileusis to treat moderate-to-high astigmatism
title_full_unstemmed	Clinical outcomes of wavefront-guided laser in situ keratomileusis to treat moderate-to-high astigmatism
title_sort	clinical outcomes of wavefront-guided laser in situ keratomileusis to treat moderate-to-high astigmatism
publisher	Dove Medical Press
publishDate	2015
url	https://doaj.org/article/5ef72542ce264c8d9f461bedbfa25634
work_keys_str_mv	AT schallhornsc clinicaloutcomesofwavefrontguidedlaserinsitukeratomileusistotreatmoderatetohighastigmatism AT venterja clinicaloutcomesofwavefrontguidedlaserinsitukeratomileusistotreatmoderatetohighastigmatism AT hannansj clinicaloutcomesofwavefrontguidedlaserinsitukeratomileusistotreatmoderatetohighastigmatism AT hettingerka clinicaloutcomesofwavefrontguidedlaserinsitukeratomileusistotreatmoderatetohighastigmatism
_version_	1718401370952826880

Clinical outcomes of wavefront-guided laser in situ keratomileusis to treat moderate-to-high astigmatism

Ejemplares similares