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Effect of body posture on visual acuity, refractive errorand binocular vision

The purpose of this study is to investigate the effect of the body postures on the visual acuity, refractive error and binocular vision. The near task body postures of thirty optometry students without pre-knowledge about the nature of the study were photographed from front view, side view and top v...

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Main Authors: Chen , Ai-Hong, Napisah Sai,
Format: Article
Published: Universiti Kebangsaan Malaysia 2000
Online Access:http://journalarticle.ukm.my/3780/
http://www.ukm.my/jsm/english_journals/vol29_2000/vol29_00page33-43.html
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spelling my-ukm.journal.37802012-05-02T10:26:41Z http://journalarticle.ukm.my/3780/ Effect of body posture on visual acuity, refractive errorand binocular vision Chen , Ai-Hong Napisah Sai, The purpose of this study is to investigate the effect of the body postures on the visual acuity, refractive error and binocular vision. The near task body postures of thirty optometry students without pre-knowledge about the nature of the study were photographed from front view, side view and top view. The angles of the head tilt, body tilt and head rotation of the near task body posture for each subject were estimated based on the photographs. The habitual working distance and Harmon distance of each subject were also measured. The visual acuity, refractive error, amplitude of accommodation, positive and negatif relative accommodation, accommodation facility, accommodation lag, near point of convergence and heterophoria were tested for all subjects. Our results show that there was no significant effect of body posture on visual acuity, refractive error and binocular vision. Moderate head tilts, body tilts, head rotations and non-extreme habitual working distances of young adults do not seem to cause significant changes to their visual systems. Universiti Kebangsaan Malaysia 2000 Article PeerReviewed Chen , Ai-Hong and Napisah Sai, (2000) Effect of body posture on visual acuity, refractive errorand binocular vision. Sains Malaysiana, 29 . pp. 33-43. ISSN 0126-6039 http://www.ukm.my/jsm/english_journals/vol29_2000/vol29_00page33-43.html
institution Universiti Kebangsaan Malaysia
building Perpustakaan Tun Sri Lanang Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Kebangsaan Malaysia
content_source UKM Journal Article Repository
url_provider http://journalarticle.ukm.my/
description The purpose of this study is to investigate the effect of the body postures on the visual acuity, refractive error and binocular vision. The near task body postures of thirty optometry students without pre-knowledge about the nature of the study were photographed from front view, side view and top view. The angles of the head tilt, body tilt and head rotation of the near task body posture for each subject were estimated based on the photographs. The habitual working distance and Harmon distance of each subject were also measured. The visual acuity, refractive error, amplitude of accommodation, positive and negatif relative accommodation, accommodation facility, accommodation lag, near point of convergence and heterophoria were tested for all subjects. Our results show that there was no significant effect of body posture on visual acuity, refractive error and binocular vision. Moderate head tilts, body tilts, head rotations and non-extreme habitual working distances of young adults do not seem to cause significant changes to their visual systems.
format Article
author Chen , Ai-Hong
Napisah Sai,
spellingShingle Chen , Ai-Hong
Napisah Sai,
Effect of body posture on visual acuity, refractive errorand binocular vision
author_facet Chen , Ai-Hong
Napisah Sai,
author_sort Chen , Ai-Hong
title Effect of body posture on visual acuity, refractive errorand binocular vision
title_short Effect of body posture on visual acuity, refractive errorand binocular vision
title_full Effect of body posture on visual acuity, refractive errorand binocular vision
title_fullStr Effect of body posture on visual acuity, refractive errorand binocular vision
title_full_unstemmed Effect of body posture on visual acuity, refractive errorand binocular vision
title_sort effect of body posture on visual acuity, refractive errorand binocular vision
publisher Universiti Kebangsaan Malaysia
publishDate 2000
url http://journalarticle.ukm.my/3780/
http://www.ukm.my/jsm/english_journals/vol29_2000/vol29_00page33-43.html
_version_ 1643735843991453696
score 13.211869

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