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Cycloplegic Effects on the Cylindrical Components of the Refraction

It is important to predict which astigmatic patients require separate refraction for near vision. This study compared cylindrical components changes by cyclopentolate 1% for the low and high amount of astigmatism. The right eyes of 1014 healthy individuals (307 males and 707 females) with cylindrica...

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Autores principales: Zareei, Athar, Abdolahian, Milad, Bamdad, Shahram
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Hindawi 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8041553/
https://www.ncbi.nlm.nih.gov/pubmed/33884203
http://dx.doi.org/10.1155/2021/8810782
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author Zareei, Athar
Abdolahian, Milad
Bamdad, Shahram
author_facet Zareei, Athar
Abdolahian, Milad
Bamdad, Shahram
author_sort Zareei, Athar
collection PubMed
description It is important to predict which astigmatic patients require separate refraction for near vision. This study compared cylindrical components changes by cyclopentolate 1% for the low and high amount of astigmatism. The right eyes of 1014 healthy individuals (307 males and 707 females) with cylindrical refractive power more than −0.5 diopter on autorefractometer were selected. Both male and female patients in the age range of 17–45 years were refracted before and after cycloplegia, using 1% cyclopentolate. All volunteers were classified into 2 subgroups including the lower astigmatism group (−2.25 to −0.50) and the higher astigmatic group (−2.50 to over). Alpines' method was used to compare the effect of cycloplegic drop on cylindrical power. The mean age in the lower astigmatism group (29.58; 95% CI: 29.18 to 29.99 years) was not significantly different from the higher astigmatic group (29.85; 95% CI: 29.07 to 30.62) and there were no significant differences in gender between these two groups (P=0.54). Differences between wet and dry refraction in J0 (−0.03; 95% CI:−0.06 to −0.008) and J45 (−0.03; 95% CI:−0.06 to −0.01) were significant only in the higher astigmatic group. Axis changes by the cycloplegic drop in the lower astigmatism group were 3.51 (CI: 3.22 to 3.81) and axis changes by the cycloplegic drop in the higher astigmatism group were 2.21 (CI: 1.73 to 2.49). In patients with a lower amount of astigmatism (−2.25 to −0.50), additional near subjective refraction could be done for precise determination of axis and in patients with a higher amount of astigmatism (−2.50 to over), near subjective refraction might be done for precise determination of power.
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spelling pubmed-80415532021-04-20 Cycloplegic Effects on the Cylindrical Components of the Refraction Zareei, Athar Abdolahian, Milad Bamdad, Shahram J Ophthalmol Research Article It is important to predict which astigmatic patients require separate refraction for near vision. This study compared cylindrical components changes by cyclopentolate 1% for the low and high amount of astigmatism. The right eyes of 1014 healthy individuals (307 males and 707 females) with cylindrical refractive power more than −0.5 diopter on autorefractometer were selected. Both male and female patients in the age range of 17–45 years were refracted before and after cycloplegia, using 1% cyclopentolate. All volunteers were classified into 2 subgroups including the lower astigmatism group (−2.25 to −0.50) and the higher astigmatic group (−2.50 to over). Alpines' method was used to compare the effect of cycloplegic drop on cylindrical power. The mean age in the lower astigmatism group (29.58; 95% CI: 29.18 to 29.99 years) was not significantly different from the higher astigmatic group (29.85; 95% CI: 29.07 to 30.62) and there were no significant differences in gender between these two groups (P=0.54). Differences between wet and dry refraction in J0 (−0.03; 95% CI:−0.06 to −0.008) and J45 (−0.03; 95% CI:−0.06 to −0.01) were significant only in the higher astigmatic group. Axis changes by the cycloplegic drop in the lower astigmatism group were 3.51 (CI: 3.22 to 3.81) and axis changes by the cycloplegic drop in the higher astigmatism group were 2.21 (CI: 1.73 to 2.49). In patients with a lower amount of astigmatism (−2.25 to −0.50), additional near subjective refraction could be done for precise determination of axis and in patients with a higher amount of astigmatism (−2.50 to over), near subjective refraction might be done for precise determination of power. Hindawi 2021-04-02 /pmc/articles/PMC8041553/ /pubmed/33884203 http://dx.doi.org/10.1155/2021/8810782 Text en Copyright © 2021 Athar Zareei et al. https://creativecommons.org/licenses/by/4.0/This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research Article
Zareei, Athar
Abdolahian, Milad
Bamdad, Shahram
Cycloplegic Effects on the Cylindrical Components of the Refraction
title Cycloplegic Effects on the Cylindrical Components of the Refraction
title_full Cycloplegic Effects on the Cylindrical Components of the Refraction
title_fullStr Cycloplegic Effects on the Cylindrical Components of the Refraction
title_full_unstemmed Cycloplegic Effects on the Cylindrical Components of the Refraction
title_short Cycloplegic Effects on the Cylindrical Components of the Refraction
title_sort cycloplegic effects on the cylindrical components of the refraction
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8041553/
https://www.ncbi.nlm.nih.gov/pubmed/33884203
http://dx.doi.org/10.1155/2021/8810782
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