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The effects of Ramadan fasting on the health and function of the eye

BACKGROUND: Ramadan fasting may alter a variety of physiological parameters which by themselves influence ocular system. Here, we review the effects of Ramadan fasting on the health and function of the eye. MATERIALS AND METHODS: Literature records in PubMed/MEDLINE, Web of Science, EMBASE, Google S...

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Autores principales: Javadi, Mohammad Ali, Assadi, Mahsan, Einollahi, Bahram, Rabei, Hossein Mohammad, Afarid, Mehrdad, Assadi, Majid
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Medknow Publications & Media Pvt Ltd 2014
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4235101/
https://www.ncbi.nlm.nih.gov/pubmed/25422666
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author Javadi, Mohammad Ali
Assadi, Mahsan
Einollahi, Bahram
Rabei, Hossein Mohammad
Afarid, Mehrdad
Assadi, Majid
author_facet Javadi, Mohammad Ali
Assadi, Mahsan
Einollahi, Bahram
Rabei, Hossein Mohammad
Afarid, Mehrdad
Assadi, Majid
author_sort Javadi, Mohammad Ali
collection PubMed
description BACKGROUND: Ramadan fasting may alter a variety of physiological parameters which by themselves influence ocular system. Here, we review the effects of Ramadan fasting on the health and function of the eye. MATERIALS AND METHODS: Literature records in PubMed/MEDLINE, Web of Science, EMBASE, Google Scholar, and Iran Medex databases as well as proceedings of related meetings from January 1986 to March 2014 were systematically reviewed. The search key words was based on the terms “Ramadan Fasting,” “Ramadan,” “Islamic Fasting,” “Fasting in Ramadan” accompanied with one of the eye, tear drop, myopia, intraocular pressure (IOP), tear break up time, basal tear secretion, refractive error, and visual acuity. RESULTS: Predawn water loading and dehydration in the evening are shown to increase and decrease IOP and tear secretion, respectively. Ocular blood flow is changed in Ramadan fasting, and patients with ocular vein occlusion may experience more frequent attacks. There are no or minimal fluctuations in visual acuity and refractive errors, but most of them are decompensated after Ramadan. CONCLUSION: Although the influence of fasting in different eye parameters is evaluated in several studies, there are no or only limited studies conducted on patients suffering from glaucoma, damage to ophthalmic vasculature, tear dysfunction, and minimal visual acuity. Such studies are required to make a definite decision before fasting is declared harmless to these patients.
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spelling pubmed-42351012014-11-24 The effects of Ramadan fasting on the health and function of the eye Javadi, Mohammad Ali Assadi, Mahsan Einollahi, Bahram Rabei, Hossein Mohammad Afarid, Mehrdad Assadi, Majid J Res Med Sci Review Article BACKGROUND: Ramadan fasting may alter a variety of physiological parameters which by themselves influence ocular system. Here, we review the effects of Ramadan fasting on the health and function of the eye. MATERIALS AND METHODS: Literature records in PubMed/MEDLINE, Web of Science, EMBASE, Google Scholar, and Iran Medex databases as well as proceedings of related meetings from January 1986 to March 2014 were systematically reviewed. The search key words was based on the terms “Ramadan Fasting,” “Ramadan,” “Islamic Fasting,” “Fasting in Ramadan” accompanied with one of the eye, tear drop, myopia, intraocular pressure (IOP), tear break up time, basal tear secretion, refractive error, and visual acuity. RESULTS: Predawn water loading and dehydration in the evening are shown to increase and decrease IOP and tear secretion, respectively. Ocular blood flow is changed in Ramadan fasting, and patients with ocular vein occlusion may experience more frequent attacks. There are no or minimal fluctuations in visual acuity and refractive errors, but most of them are decompensated after Ramadan. CONCLUSION: Although the influence of fasting in different eye parameters is evaluated in several studies, there are no or only limited studies conducted on patients suffering from glaucoma, damage to ophthalmic vasculature, tear dysfunction, and minimal visual acuity. Such studies are required to make a definite decision before fasting is declared harmless to these patients. Medknow Publications & Media Pvt Ltd 2014-08 /pmc/articles/PMC4235101/ /pubmed/25422666 Text en Copyright: © Journal of Research in Medical Sciences 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 Review Article
Javadi, Mohammad Ali
Assadi, Mahsan
Einollahi, Bahram
Rabei, Hossein Mohammad
Afarid, Mehrdad
Assadi, Majid
The effects of Ramadan fasting on the health and function of the eye
title The effects of Ramadan fasting on the health and function of the eye
title_full The effects of Ramadan fasting on the health and function of the eye
title_fullStr The effects of Ramadan fasting on the health and function of the eye
title_full_unstemmed The effects of Ramadan fasting on the health and function of the eye
title_short The effects of Ramadan fasting on the health and function of the eye
title_sort effects of ramadan fasting on the health and function of the eye
topic Review Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4235101/
https://www.ncbi.nlm.nih.gov/pubmed/25422666
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