The variation of accommodation relaxation at distance among non-presbyopes and presbyopes / Syamerra Mohd Salleh Yap

Purpose: Relaxation of accommodation at distance was not perfectly constant while fixating at an immobile object. A small fluctuation normally presents at various distance viewing which was termed as variation of accommodation. The purpose of this study was to find out the variation of accommodation...

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Main Author:	Mohd Salleh Yap, Syamerra
Format:	Thesis
Language:	English
Published:	2015
Subjects:	Eyeglasses Lenses
Online Access:	https://ir.uitm.edu.my/id/eprint/64178/1/64178.pdf
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id	my-uitm-ir.64178
record_format	uketd_dc
spelling	my-uitm-ir.641782022-07-20T00:23:16Z The variation of accommodation relaxation at distance among non-presbyopes and presbyopes / Syamerra Mohd Salleh Yap 2015-07 Mohd Salleh Yap, Syamerra Eyeglasses. Lenses Purpose: Relaxation of accommodation at distance was not perfectly constant while fixating at an immobile object. A small fluctuation normally presents at various distance viewing which was termed as variation of accommodation. The purpose of this study was to find out the variation of accommodation at distance between the non-presbyopia and presbyopia in Puncak Alam, Selangor. Methods: This study used convenient sampling method with a sample size of 26 persons in this study. The research instrument used was experimental to the non presbyopic and presbyopic patient in Puncak Alam age between 20 to 55 years old who came for ophthalmic care in Optometry Clinic, UiTM Puncak Alam. Variation of accommodation at distance were gathered for one-minute duration using infrared open field autorefractor with the subjects fixated on distant target at 6 meters. Result: The root mean square (RMS) value for variation of accommodation at distance amongst non-presbyopia and presbyopia groups were 0.3508 and 0.3027, respectively. This showed that the variation was higher in non-presbyopia than presbyopia. In analyzing the statistical difference, Power and Sample Size (PSS) software was used. Nevertheless, Mann-Whitney TJ test showed that there was no significant difference in the variation of accommodation relaxation at distance among the non presbyopia and presbyopia (p>0.05). Conclusion: The findings from our study suggested that the reduced capability to accommodate in presbyopia might not significantly affect accommodation relaxation with zero accommodation demand (at infinity). 2015-07 Thesis https://ir.uitm.edu.my/id/eprint/64178/ https://ir.uitm.edu.my/id/eprint/64178/1/64178.pdf text en public degree Universiti Teknologi MARA Faculty of Health Sciences Ahmad, Azmir
institution	Universiti Teknologi MARA
collection	UiTM Institutional Repository
language	English
advisor	Ahmad, Azmir
topic	Eyeglasses Lenses
spellingShingle	Eyeglasses Lenses Mohd Salleh Yap, Syamerra The variation of accommodation relaxation at distance among non-presbyopes and presbyopes / Syamerra Mohd Salleh Yap
description	Purpose: Relaxation of accommodation at distance was not perfectly constant while fixating at an immobile object. A small fluctuation normally presents at various distance viewing which was termed as variation of accommodation. The purpose of this study was to find out the variation of accommodation at distance between the non-presbyopia and presbyopia in Puncak Alam, Selangor. Methods: This study used convenient sampling method with a sample size of 26 persons in this study. The research instrument used was experimental to the non presbyopic and presbyopic patient in Puncak Alam age between 20 to 55 years old who came for ophthalmic care in Optometry Clinic, UiTM Puncak Alam. Variation of accommodation at distance were gathered for one-minute duration using infrared open field autorefractor with the subjects fixated on distant target at 6 meters. Result: The root mean square (RMS) value for variation of accommodation at distance amongst non-presbyopia and presbyopia groups were 0.3508 and 0.3027, respectively. This showed that the variation was higher in non-presbyopia than presbyopia. In analyzing the statistical difference, Power and Sample Size (PSS) software was used. Nevertheless, Mann-Whitney TJ test showed that there was no significant difference in the variation of accommodation relaxation at distance among the non presbyopia and presbyopia (p>0.05). Conclusion: The findings from our study suggested that the reduced capability to accommodate in presbyopia might not significantly affect accommodation relaxation with zero accommodation demand (at infinity).
format	Thesis
qualification_level	Bachelor degree
author	Mohd Salleh Yap, Syamerra
author_facet	Mohd Salleh Yap, Syamerra
author_sort	Mohd Salleh Yap, Syamerra
title	The variation of accommodation relaxation at distance among non-presbyopes and presbyopes / Syamerra Mohd Salleh Yap
title_short	The variation of accommodation relaxation at distance among non-presbyopes and presbyopes / Syamerra Mohd Salleh Yap
title_full	The variation of accommodation relaxation at distance among non-presbyopes and presbyopes / Syamerra Mohd Salleh Yap
title_fullStr	The variation of accommodation relaxation at distance among non-presbyopes and presbyopes / Syamerra Mohd Salleh Yap
title_full_unstemmed	The variation of accommodation relaxation at distance among non-presbyopes and presbyopes / Syamerra Mohd Salleh Yap
title_sort	variation of accommodation relaxation at distance among non-presbyopes and presbyopes / syamerra mohd salleh yap
granting_institution	Universiti Teknologi MARA
granting_department	Faculty of Health Sciences
publishDate	2015
url	https://ir.uitm.edu.my/id/eprint/64178/1/64178.pdf
_version_	1783735415295967232

The variation of accommodation relaxation at distance among non-presbyopes and presbyopes / Syamerra Mohd Salleh Yap

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