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Prediction of distance visual acuity in presbyopic astigmatic subjects

This study was aimed to determine the effect of the amount of astigmatism on distance visual acuity, and to provide a prediction formula of visual acuity according to astigmatism, in a presbyopic population. We comprised 318 eyes of 318 consecutive patients (158 phakic and 160 pseudophakic subjects)...

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Autores principales: Hoshikawa, Rie, Kamiya, Kazutaka, Fujimura, Fusako, Shoji, Nobuyuki
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7997907/
https://www.ncbi.nlm.nih.gov/pubmed/33772047
http://dx.doi.org/10.1038/s41598-021-85313-3
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author Hoshikawa, Rie
Kamiya, Kazutaka
Fujimura, Fusako
Shoji, Nobuyuki
author_facet Hoshikawa, Rie
Kamiya, Kazutaka
Fujimura, Fusako
Shoji, Nobuyuki
author_sort Hoshikawa, Rie
collection PubMed
description This study was aimed to determine the effect of the amount of astigmatism on distance visual acuity, and to provide a prediction formula of visual acuity according to astigmatism, in a presbyopic population. We comprised 318 eyes of 318 consecutive patients (158 phakic and 160 pseudophakic subjects) without any eye diseases, except for refractive errors with astigmatism of 3 diopter or less. We assessed the relationship of the spherical equivalent visual acuity (SEVA) with astigmatism, and also provided a regression formula of visual acuity according to astigmatism in such subjects. We found a significant correlation between the SEVA and the amount of astigmatism (r = 0.715, p < 0.001) in the entire study population. We obtained similar results, not only in phakic eyes (r = 0.718, p < 0.001), but also in pseudophakic eyes (r = 0.717, p < 0.001). The regression formula was expressed as follows: y = 0.017x(2) + 0.125x − 0.116 (R(2) = 0.544), where y = logMAR SEVA, and x = astigmatism. We also found no significant differences in the SEVA for matched comparison among the with-the-rule (WTR), against-the-rule (ATR), and oblique (OBL) astigmatism subgroups (p = 0.922). These regression formulas may be clinically beneficial not only for estimating the visual prognosis after astigmatic correction, but also for determining the surgical indication of astigmatic correction.
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spelling pubmed-79979072021-03-29 Prediction of distance visual acuity in presbyopic astigmatic subjects Hoshikawa, Rie Kamiya, Kazutaka Fujimura, Fusako Shoji, Nobuyuki Sci Rep Article This study was aimed to determine the effect of the amount of astigmatism on distance visual acuity, and to provide a prediction formula of visual acuity according to astigmatism, in a presbyopic population. We comprised 318 eyes of 318 consecutive patients (158 phakic and 160 pseudophakic subjects) without any eye diseases, except for refractive errors with astigmatism of 3 diopter or less. We assessed the relationship of the spherical equivalent visual acuity (SEVA) with astigmatism, and also provided a regression formula of visual acuity according to astigmatism in such subjects. We found a significant correlation between the SEVA and the amount of astigmatism (r = 0.715, p < 0.001) in the entire study population. We obtained similar results, not only in phakic eyes (r = 0.718, p < 0.001), but also in pseudophakic eyes (r = 0.717, p < 0.001). The regression formula was expressed as follows: y = 0.017x(2) + 0.125x − 0.116 (R(2) = 0.544), where y = logMAR SEVA, and x = astigmatism. We also found no significant differences in the SEVA for matched comparison among the with-the-rule (WTR), against-the-rule (ATR), and oblique (OBL) astigmatism subgroups (p = 0.922). These regression formulas may be clinically beneficial not only for estimating the visual prognosis after astigmatic correction, but also for determining the surgical indication of astigmatic correction. Nature Publishing Group UK 2021-03-26 /pmc/articles/PMC7997907/ /pubmed/33772047 http://dx.doi.org/10.1038/s41598-021-85313-3 Text en © The Author(s) 2021 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/.
spellingShingle Article
Hoshikawa, Rie
Kamiya, Kazutaka
Fujimura, Fusako
Shoji, Nobuyuki
Prediction of distance visual acuity in presbyopic astigmatic subjects
title Prediction of distance visual acuity in presbyopic astigmatic subjects
title_full Prediction of distance visual acuity in presbyopic astigmatic subjects
title_fullStr Prediction of distance visual acuity in presbyopic astigmatic subjects
title_full_unstemmed Prediction of distance visual acuity in presbyopic astigmatic subjects
title_short Prediction of distance visual acuity in presbyopic astigmatic subjects
title_sort prediction of distance visual acuity in presbyopic astigmatic subjects
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7997907/
https://www.ncbi.nlm.nih.gov/pubmed/33772047
http://dx.doi.org/10.1038/s41598-021-85313-3
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