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Symmetric offset versus asymmetric offset ablation with transepithelial refractive keratectomy

BACKGROUND: In eyes with hyperopia, astigmatism, and mixed astigmatism Transepithelial photorefractive keratectomy (TransPRK) is a modality of surface ablation surgery. We center on the corneal vertex for all our treatments (all have an offset to the center of the pupil) and wanted to compare the vi...

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Autores principales: de Ortueta, Diego, von Rüden, Dennis, Arba Mosquera, Samuel
Formato: Online Artículo Texto
Lenguaje:English
Publicado: BioMed Central 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10189917/
https://www.ncbi.nlm.nih.gov/pubmed/37198622
http://dx.doi.org/10.1186/s12886-023-02971-9
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author de Ortueta, Diego
von Rüden, Dennis
Arba Mosquera, Samuel
author_facet de Ortueta, Diego
von Rüden, Dennis
Arba Mosquera, Samuel
author_sort de Ortueta, Diego
collection PubMed
description BACKGROUND: In eyes with hyperopia, astigmatism, and mixed astigmatism Transepithelial photorefractive keratectomy (TransPRK) is a modality of surface ablation surgery. We center on the corneal vertex for all our treatments (all have an offset to the center of the pupil) and wanted to compare the visual results of symmetrical profile treatments versus asymmetrical profile treatments (the center of the treatment on the vertex and the boundaries with the pupil center) using TransPRK as corneal refractive surgery. METHODS: We retrospectively analyzed two consecutive groups of eyes treated with TransPRK in the Aurelios Augenlaserzentrum Recklinghausen: 47 eyes treated with symmetrical offset and 51 eyes treated with asymmetrical offset. The intergroup comparisons were assessed using unpaired Student’s T-tests, whereas preoperative to postoperative changes were assessed using paired Student’s T-tests. RESULTS: Refractive outcomes were good for both groups. 83 and 88% of eyes were within the spherical equivalent of 0.5 D from the target in the symmetric and asymmetric offset groups, respectively. 85 and 84% of eyes had a postoperative astigmatism of 0.5 D or lower in the symmetric and asymmetric offset groups, respectively. CONCLUSION: We have not found a significant difference in the refractive outcomes between the symmetric group and the asymmetric group of eyes treated both with TransPRK for preoperatively hyperopic or mixed astigmatism.
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spelling pubmed-101899172023-05-18 Symmetric offset versus asymmetric offset ablation with transepithelial refractive keratectomy de Ortueta, Diego von Rüden, Dennis Arba Mosquera, Samuel BMC Ophthalmol Research Article BACKGROUND: In eyes with hyperopia, astigmatism, and mixed astigmatism Transepithelial photorefractive keratectomy (TransPRK) is a modality of surface ablation surgery. We center on the corneal vertex for all our treatments (all have an offset to the center of the pupil) and wanted to compare the visual results of symmetrical profile treatments versus asymmetrical profile treatments (the center of the treatment on the vertex and the boundaries with the pupil center) using TransPRK as corneal refractive surgery. METHODS: We retrospectively analyzed two consecutive groups of eyes treated with TransPRK in the Aurelios Augenlaserzentrum Recklinghausen: 47 eyes treated with symmetrical offset and 51 eyes treated with asymmetrical offset. The intergroup comparisons were assessed using unpaired Student’s T-tests, whereas preoperative to postoperative changes were assessed using paired Student’s T-tests. RESULTS: Refractive outcomes were good for both groups. 83 and 88% of eyes were within the spherical equivalent of 0.5 D from the target in the symmetric and asymmetric offset groups, respectively. 85 and 84% of eyes had a postoperative astigmatism of 0.5 D or lower in the symmetric and asymmetric offset groups, respectively. CONCLUSION: We have not found a significant difference in the refractive outcomes between the symmetric group and the asymmetric group of eyes treated both with TransPRK for preoperatively hyperopic or mixed astigmatism. BioMed Central 2023-05-17 /pmc/articles/PMC10189917/ /pubmed/37198622 http://dx.doi.org/10.1186/s12886-023-02971-9 Text en © The Author(s) 2023 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/ (https://creativecommons.org/publicdomain/zero/1.0/) ) applies to the data made available in this article, unless otherwise stated in a credit line to the data.
spellingShingle Research Article
de Ortueta, Diego
von Rüden, Dennis
Arba Mosquera, Samuel
Symmetric offset versus asymmetric offset ablation with transepithelial refractive keratectomy
title Symmetric offset versus asymmetric offset ablation with transepithelial refractive keratectomy
title_full Symmetric offset versus asymmetric offset ablation with transepithelial refractive keratectomy
title_fullStr Symmetric offset versus asymmetric offset ablation with transepithelial refractive keratectomy
title_full_unstemmed Symmetric offset versus asymmetric offset ablation with transepithelial refractive keratectomy
title_short Symmetric offset versus asymmetric offset ablation with transepithelial refractive keratectomy
title_sort symmetric offset versus asymmetric offset ablation with transepithelial refractive keratectomy
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10189917/
https://www.ncbi.nlm.nih.gov/pubmed/37198622
http://dx.doi.org/10.1186/s12886-023-02971-9
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