$Comparison of positive and negative ranges of accommodation and vergence measures between low and moderate visual complaint based on refractive error groups / Nurul Syazwani Mat Sukri$

Comparison of positive and negative ranges of accommodation and vergence measures between low and moderate visual complaint based on refractive error groups / Nurul Syazwani Mat Sukri

Background: In binocular viewing, the accommodation and vergence were interacted to each other to form a single clear image. However, the resulting mismatch between accommodation and vergence during prolonged near task could induce stress on our eyes called visual complaint or visual stress. Prolong...

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Main Author:	Mat Sukri, Nurul Syazwani
Format:	Thesis
Language:	English
Published:	2016
Subjects:	Refraction and errors of refraction and accommodation
Online Access:	https://ir.uitm.edu.my/id/eprint/22415/1/TD_NURUL%20SYAZWANI%20MAT%20SUKRI%20HS%20B%2016_5.pdf
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id	my-uitm-ir.22415
record_format	uketd_dc
spelling	my-uitm-ir.224152018-12-12T03:15:36Z Comparison of positive and negative ranges of accommodation and vergence measures between low and moderate visual complaint based on refractive error groups / Nurul Syazwani Mat Sukri 2016 Mat Sukri, Nurul Syazwani Refraction and errors of refraction and accommodation Optometry. Opticians. Eyeglasses Background: In binocular viewing, the accommodation and vergence were interacted to each other to form a single clear image. However, the resulting mismatch between accommodation and vergence during prolonged near task could induce stress on our eyes called visual complaint or visual stress. Prolonged near related activities might precipitated more complaints. Uncorrected refractive error also contributed to visual discomfort. Purpose: To investigate the accommodation and vergence status with visual stress complaint. Methods: Fifty-two young adult subjects were included. Of the total sample, 28 (55.8%) were categorized in low visual complaint group and 24 (44.2%) were in moderate visual complaint group. The visual functions evaluated included refractive errors, relative accommodation and fusional vergences. The relative accommodation was measured by introducing +0.25DS for Negative Relative Accommodation (NRA) and -0.25DS for Positive Relative Accommodation (PRA). The fusional vergences were measured at distance (6 meters) and near (40 centimeters) by prism bar. Results: Negative fusional vergence at near was found significant in low complaint emmetropia rather than low complaint myopia. No significant different existed between the refractive errors and accommodation as well as in vergence. Conclusion: The amount of relative accommodation and fusional reserves did not relate to the visual complaint. 2016 Thesis https://ir.uitm.edu.my/id/eprint/22415/ https://ir.uitm.edu.my/id/eprint/22415/1/TD_NURUL%20SYAZWANI%20MAT%20SUKRI%20HS%20B%2016_5.pdf text en public degree Universiti Teknologi MARA, Selangor, Puncak Alam Campus Faculty of Health Science
institution	Universiti Teknologi MARA
collection	UiTM Institutional Repository
language	English
topic	Refraction and errors of refraction and accommodation Refraction and errors of refraction and accommodation
spellingShingle	Refraction and errors of refraction and accommodation Refraction and errors of refraction and accommodation Mat Sukri, Nurul Syazwani Comparison of positive and negative ranges of accommodation and vergence measures between low and moderate visual complaint based on refractive error groups / Nurul Syazwani Mat Sukri
description	Background: In binocular viewing, the accommodation and vergence were interacted to each other to form a single clear image. However, the resulting mismatch between accommodation and vergence during prolonged near task could induce stress on our eyes called visual complaint or visual stress. Prolonged near related activities might precipitated more complaints. Uncorrected refractive error also contributed to visual discomfort. Purpose: To investigate the accommodation and vergence status with visual stress complaint. Methods: Fifty-two young adult subjects were included. Of the total sample, 28 (55.8%) were categorized in low visual complaint group and 24 (44.2%) were in moderate visual complaint group. The visual functions evaluated included refractive errors, relative accommodation and fusional vergences. The relative accommodation was measured by introducing +0.25DS for Negative Relative Accommodation (NRA) and -0.25DS for Positive Relative Accommodation (PRA). The fusional vergences were measured at distance (6 meters) and near (40 centimeters) by prism bar. Results: Negative fusional vergence at near was found significant in low complaint emmetropia rather than low complaint myopia. No significant different existed between the refractive errors and accommodation as well as in vergence. Conclusion: The amount of relative accommodation and fusional reserves did not relate to the visual complaint.
format	Thesis
qualification_level	Bachelor degree
author	Mat Sukri, Nurul Syazwani
author_facet	Mat Sukri, Nurul Syazwani
author_sort	Mat Sukri, Nurul Syazwani
title	Comparison of positive and negative ranges of accommodation and vergence measures between low and moderate visual complaint based on refractive error groups / Nurul Syazwani Mat Sukri
title_short	Comparison of positive and negative ranges of accommodation and vergence measures between low and moderate visual complaint based on refractive error groups / Nurul Syazwani Mat Sukri
title_full	Comparison of positive and negative ranges of accommodation and vergence measures between low and moderate visual complaint based on refractive error groups / Nurul Syazwani Mat Sukri
title_fullStr	Comparison of positive and negative ranges of accommodation and vergence measures between low and moderate visual complaint based on refractive error groups / Nurul Syazwani Mat Sukri
title_full_unstemmed	Comparison of positive and negative ranges of accommodation and vergence measures between low and moderate visual complaint based on refractive error groups / Nurul Syazwani Mat Sukri
title_sort	comparison of positive and negative ranges of accommodation and vergence measures between low and moderate visual complaint based on refractive error groups / nurul syazwani mat sukri
granting_institution	Universiti Teknologi MARA, Selangor, Puncak Alam Campus
granting_department	Faculty of Health Science
publishDate	2016
url	https://ir.uitm.edu.my/id/eprint/22415/1/TD_NURUL%20SYAZWANI%20MAT%20SUKRI%20HS%20B%2016_5.pdf
_version_	1783733814777872384

Comparison of positive and negative ranges of accommodation and vergence measures between low and moderate visual complaint based on refractive error groups / Nurul Syazwani Mat Sukri

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