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Prevalence of Refractive Errors in Students with and without Color Vision Deficiency
PURPOSE: To evaluate refractive errors in school age children with color vision deficiency (CVD) and those with normal color vision (NCV) in order to make a better understanding of the emmetropization process. METHODS: A total of 4,400 primary school students aged 7–12 years were screened for color...
Autores principales: | , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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Medknow Publications & Media Pvt Ltd
2014
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4329710/ https://www.ncbi.nlm.nih.gov/pubmed/25709775 http://dx.doi.org/10.4103/2008-322X.150828 |
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author | Ostadimoghaddam, Hadi Yekta, Abbas Ali Heravian, Javad Azimi, Abbas Hosseini, Seyed Mahdi Ahmadi Vatandoust, Sakineh Sharifi, Fatemeh Abolbashari, Fereshteh |
author_facet | Ostadimoghaddam, Hadi Yekta, Abbas Ali Heravian, Javad Azimi, Abbas Hosseini, Seyed Mahdi Ahmadi Vatandoust, Sakineh Sharifi, Fatemeh Abolbashari, Fereshteh |
author_sort | Ostadimoghaddam, Hadi |
collection | PubMed |
description | PURPOSE: To evaluate refractive errors in school age children with color vision deficiency (CVD) and those with normal color vision (NCV) in order to make a better understanding of the emmetropization process. METHODS: A total of 4,400 primary school students aged 7–12 years were screened for color vision using Ishihara pseudoisochromatic color vision plate sets. Of these, 160 (3.6%) students had CVD. A total of 400 age- and sex-matched students with NCV were selected as controls. Refractive status was evaluated using objective cyclorefraction. RESULTS: The CVD group included 136 male (85%) and 24 female (15%) subjects with mean age of 10.1 ± 1.8 years. The NCV group comprised of 336 male (84%) and 64 female (16%) subjects with mean age of 10.5 ± 1.2 years. The prevalence of myopia (7.7% vs. 13.9%, P < 0.001) and hyperopia (41% vs. 57.4%, P = 0.03) was significantly lower in the CVD group. Furthermore, subjects with CVD subjects demonstrated a lower magnitude of refractive errors as compared to the CVD group (mean refractive error: +0.54 ± 0.19 D versus + 0.74 ± 1.12 D, P < 0.001). CONCLUSION: Although the lower prevalence of myopia in subjects with CVD group supports the role of longitudinal chromatic aberration in the development of refractive errors; the lower prevalence of hyperopia in this group is an opposing finding. Myopia is a multifactorial disorder and longitudinal chromatic aberration is not the only factor influencing the emmetropization process. |
format | Online Article Text |
id | pubmed-4329710 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2014 |
publisher | Medknow Publications & Media Pvt Ltd |
record_format | MEDLINE/PubMed |
spelling | pubmed-43297102015-02-23 Prevalence of Refractive Errors in Students with and without Color Vision Deficiency Ostadimoghaddam, Hadi Yekta, Abbas Ali Heravian, Javad Azimi, Abbas Hosseini, Seyed Mahdi Ahmadi Vatandoust, Sakineh Sharifi, Fatemeh Abolbashari, Fereshteh J Ophthalmic Vis Res Original Article PURPOSE: To evaluate refractive errors in school age children with color vision deficiency (CVD) and those with normal color vision (NCV) in order to make a better understanding of the emmetropization process. METHODS: A total of 4,400 primary school students aged 7–12 years were screened for color vision using Ishihara pseudoisochromatic color vision plate sets. Of these, 160 (3.6%) students had CVD. A total of 400 age- and sex-matched students with NCV were selected as controls. Refractive status was evaluated using objective cyclorefraction. RESULTS: The CVD group included 136 male (85%) and 24 female (15%) subjects with mean age of 10.1 ± 1.8 years. The NCV group comprised of 336 male (84%) and 64 female (16%) subjects with mean age of 10.5 ± 1.2 years. The prevalence of myopia (7.7% vs. 13.9%, P < 0.001) and hyperopia (41% vs. 57.4%, P = 0.03) was significantly lower in the CVD group. Furthermore, subjects with CVD subjects demonstrated a lower magnitude of refractive errors as compared to the CVD group (mean refractive error: +0.54 ± 0.19 D versus + 0.74 ± 1.12 D, P < 0.001). CONCLUSION: Although the lower prevalence of myopia in subjects with CVD group supports the role of longitudinal chromatic aberration in the development of refractive errors; the lower prevalence of hyperopia in this group is an opposing finding. Myopia is a multifactorial disorder and longitudinal chromatic aberration is not the only factor influencing the emmetropization process. Medknow Publications & Media Pvt Ltd 2014 /pmc/articles/PMC4329710/ /pubmed/25709775 http://dx.doi.org/10.4103/2008-322X.150828 Text en Copyright: © Journal of Ophthalmic and Vision Research http://creativecommons.org/licenses/by-nc-sa/3.0 This is an open-access article distributed under the terms of the Creative Commons Attribution-Noncommercial-Share Alike 3.0 Unported, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Original Article Ostadimoghaddam, Hadi Yekta, Abbas Ali Heravian, Javad Azimi, Abbas Hosseini, Seyed Mahdi Ahmadi Vatandoust, Sakineh Sharifi, Fatemeh Abolbashari, Fereshteh Prevalence of Refractive Errors in Students with and without Color Vision Deficiency |
title | Prevalence of Refractive Errors in Students with and without Color Vision Deficiency |
title_full | Prevalence of Refractive Errors in Students with and without Color Vision Deficiency |
title_fullStr | Prevalence of Refractive Errors in Students with and without Color Vision Deficiency |
title_full_unstemmed | Prevalence of Refractive Errors in Students with and without Color Vision Deficiency |
title_short | Prevalence of Refractive Errors in Students with and without Color Vision Deficiency |
title_sort | prevalence of refractive errors in students with and without color vision deficiency |
topic | Original Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4329710/ https://www.ncbi.nlm.nih.gov/pubmed/25709775 http://dx.doi.org/10.4103/2008-322X.150828 |
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