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Topography-Guided Femto-LASIK in Virgin Eyes: Treating Manifest versus Measured Astigmatism
PURPOSE: To assess the stability, safety, predictability, and efficacy of topography-guided myopic Femto-LASIK with two different treatment protocols. SETTING: Ebsar Eye center, Benha, Qalyopia, Egypt. DESIGN: Single-center, retrospective, COHORT control study. METHODS: A total of 330 eyes enrolled...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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Dove
2020
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7755332/ https://www.ncbi.nlm.nih.gov/pubmed/33376296 http://dx.doi.org/10.2147/OPTH.S281736 |
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author | Abdelwahab, Shereef Mohammed Hamed, Abdelmonem M Bayoumy, Ahmed Sherin M Elfayoumi, Maha Attaia |
author_facet | Abdelwahab, Shereef Mohammed Hamed, Abdelmonem M Bayoumy, Ahmed Sherin M Elfayoumi, Maha Attaia |
author_sort | Abdelwahab, Shereef Mohammed |
collection | PubMed |
description | PURPOSE: To assess the stability, safety, predictability, and efficacy of topography-guided myopic Femto-LASIK with two different treatment protocols. SETTING: Ebsar Eye center, Benha, Qalyopia, Egypt. DESIGN: Single-center, retrospective, COHORT control study. METHODS: A total of 330 eyes enrolled in the study in group A and 322 eyes enrolled in group B underwent uncomplicated primary bilateral topography-guided Femto-LASIK. Group A was treated with the subjective clinical refraction; however, group B was treated with the modified refraction according to ALCON protocol. RESULTS: The mean preoperative refractive spherical equivalent (MRSE) was −4.85±1.90D and −5.0±1.93D in group A and B, respectively (P = 0.86), and a cylinder of −0.95±0.80 D and −0.92±0.81D, respectively. At the 12 months’ postoperatively, the residual manifest SE within ± 0.5D was achieved by 82.86% of eyes in group A compared to 83.93% in group B. Of eyes, 92.06% had ≤0.5 astigmatism dioptre, while 100% of eyes had ≤1.0 astigmatism dioptre in group A (315 eyes); however, 91.80% of eyes had ≤0.5 astigmatism dioptre, while 100% of eyes had ≤1.0 astigmatism dioptre in group B. CONCLUSION: Topographic modification of the magnitude and axis of astigmatism treated using ALCON protocol when different from the clinical refraction may offer good refractive outcomes when we apply the Alcon precalculation considerations. |
format | Online Article Text |
id | pubmed-7755332 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | Dove |
record_format | MEDLINE/PubMed |
spelling | pubmed-77553322020-12-28 Topography-Guided Femto-LASIK in Virgin Eyes: Treating Manifest versus Measured Astigmatism Abdelwahab, Shereef Mohammed Hamed, Abdelmonem M Bayoumy, Ahmed Sherin M Elfayoumi, Maha Attaia Clin Ophthalmol Original Research PURPOSE: To assess the stability, safety, predictability, and efficacy of topography-guided myopic Femto-LASIK with two different treatment protocols. SETTING: Ebsar Eye center, Benha, Qalyopia, Egypt. DESIGN: Single-center, retrospective, COHORT control study. METHODS: A total of 330 eyes enrolled in the study in group A and 322 eyes enrolled in group B underwent uncomplicated primary bilateral topography-guided Femto-LASIK. Group A was treated with the subjective clinical refraction; however, group B was treated with the modified refraction according to ALCON protocol. RESULTS: The mean preoperative refractive spherical equivalent (MRSE) was −4.85±1.90D and −5.0±1.93D in group A and B, respectively (P = 0.86), and a cylinder of −0.95±0.80 D and −0.92±0.81D, respectively. At the 12 months’ postoperatively, the residual manifest SE within ± 0.5D was achieved by 82.86% of eyes in group A compared to 83.93% in group B. Of eyes, 92.06% had ≤0.5 astigmatism dioptre, while 100% of eyes had ≤1.0 astigmatism dioptre in group A (315 eyes); however, 91.80% of eyes had ≤0.5 astigmatism dioptre, while 100% of eyes had ≤1.0 astigmatism dioptre in group B. CONCLUSION: Topographic modification of the magnitude and axis of astigmatism treated using ALCON protocol when different from the clinical refraction may offer good refractive outcomes when we apply the Alcon precalculation considerations. Dove 2020-12-18 /pmc/articles/PMC7755332/ /pubmed/33376296 http://dx.doi.org/10.2147/OPTH.S281736 Text en © 2020 Abdelwahab et al. http://creativecommons.org/licenses/by-nc/3.0/ This work is published and licensed by Dove Medical Press Limited. The full terms of this license are available at https://www.dovepress.com/terms.php and incorporate the Creative Commons Attribution – Non Commercial (unported, v3.0) License (http://creativecommons.org/licenses/by-nc/3.0/). By accessing the work you hereby accept the Terms. Non-commercial uses of the work are permitted without any further permission from Dove Medical Press Limited, provided the work is properly attributed. For permission for commercial use of this work, please see paragraphs 4.2 and 5 of our Terms (https://www.dovepress.com/terms.php). |
spellingShingle | Original Research Abdelwahab, Shereef Mohammed Hamed, Abdelmonem M Bayoumy, Ahmed Sherin M Elfayoumi, Maha Attaia Topography-Guided Femto-LASIK in Virgin Eyes: Treating Manifest versus Measured Astigmatism |
title | Topography-Guided Femto-LASIK in Virgin Eyes: Treating Manifest versus Measured Astigmatism |
title_full | Topography-Guided Femto-LASIK in Virgin Eyes: Treating Manifest versus Measured Astigmatism |
title_fullStr | Topography-Guided Femto-LASIK in Virgin Eyes: Treating Manifest versus Measured Astigmatism |
title_full_unstemmed | Topography-Guided Femto-LASIK in Virgin Eyes: Treating Manifest versus Measured Astigmatism |
title_short | Topography-Guided Femto-LASIK in Virgin Eyes: Treating Manifest versus Measured Astigmatism |
title_sort | topography-guided femto-lasik in virgin eyes: treating manifest versus measured astigmatism |
topic | Original Research |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7755332/ https://www.ncbi.nlm.nih.gov/pubmed/33376296 http://dx.doi.org/10.2147/OPTH.S281736 |
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