Comparison on testability of visual acuity, stereo acuity and colour vision tests between children with learning disabilities and children without learning disabilities in government primary schools

Context: Children with learning disabilities might have difficulties to communicate effectively and give reliable responses as required in various visual function testing procedures. Aims: The purpose of this study was to compare the testability of visual acuity using the modified Early Treatment Di...

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Bibliographic Details
Published in:Indian Journal of Ophthalmology
Main Author: Bakar N.F.A.; Chen A.-H.
Format: Article
Language:English
Published: 2014
Online Access:https://www.scopus.com/inward/record.uri?eid=2-s2.0-84898740138&doi=10.4103%2f0301-4738.116481&partnerID=40&md5=31731cf8080ca66701df97e5a4c339a2
id 2-s2.0-84898740138
spelling 2-s2.0-84898740138
Bakar N.F.A.; Chen A.-H.
Comparison on testability of visual acuity, stereo acuity and colour vision tests between children with learning disabilities and children without learning disabilities in government primary schools
2014
Indian Journal of Ophthalmology
62
2
10.4103/0301-4738.116481
https://www.scopus.com/inward/record.uri?eid=2-s2.0-84898740138&doi=10.4103%2f0301-4738.116481&partnerID=40&md5=31731cf8080ca66701df97e5a4c339a2
Context: Children with learning disabilities might have difficulties to communicate effectively and give reliable responses as required in various visual function testing procedures. Aims: The purpose of this study was to compare the testability of visual acuity using the modified Early Treatment Diabetic Retinopathy Study (ETDRS) and Cambridge Crowding Cards, stereo acuity using Lang Stereo test II and Butterfly stereo tests and colour perception using Colour Vision Test Made Easy (CVTME) and Ishihara′s Test for Colour Deficiency (Ishihara Test) between children in mainstream classes and children with learning disabilities in special education classes in government primary schools. Materials and Methods: A total of 100 primary school children (50 children from mainstream classes and 50 children from special education classes) matched in age were recruited in this cross-sectional comparative study. The testability was determined by the percentage of children who were able to give reliable respond as required by the respective tests. ′Unable to test′ was defined as inappropriate response or uncooperative despite best efforts of the screener. Results: The testability of the modified ETDRS, Butterfly stereo test and Ishihara test for respective visual function tests were found lower among children in special education classes ( P < 0.001) but not in Cambridge Crowding Cards, Lang Stereo test II and CVTME. Conclusion: Non verbal or matching approaches were found to be more superior in testing visual functions in children with learning disabilities. Modifications of vision testing procedures are essential for children with learning disabilities.

19983689
English
Article
All Open Access; Gold Open Access
author Bakar N.F.A.; Chen A.-H.
spellingShingle Bakar N.F.A.; Chen A.-H.
Comparison on testability of visual acuity, stereo acuity and colour vision tests between children with learning disabilities and children without learning disabilities in government primary schools
author_facet Bakar N.F.A.; Chen A.-H.
author_sort Bakar N.F.A.; Chen A.-H.
title Comparison on testability of visual acuity, stereo acuity and colour vision tests between children with learning disabilities and children without learning disabilities in government primary schools
title_short Comparison on testability of visual acuity, stereo acuity and colour vision tests between children with learning disabilities and children without learning disabilities in government primary schools
title_full Comparison on testability of visual acuity, stereo acuity and colour vision tests between children with learning disabilities and children without learning disabilities in government primary schools
title_fullStr Comparison on testability of visual acuity, stereo acuity and colour vision tests between children with learning disabilities and children without learning disabilities in government primary schools
title_full_unstemmed Comparison on testability of visual acuity, stereo acuity and colour vision tests between children with learning disabilities and children without learning disabilities in government primary schools
title_sort Comparison on testability of visual acuity, stereo acuity and colour vision tests between children with learning disabilities and children without learning disabilities in government primary schools
publishDate 2014
container_title Indian Journal of Ophthalmology
container_volume 62
container_issue 2
doi_str_mv 10.4103/0301-4738.116481
url https://www.scopus.com/inward/record.uri?eid=2-s2.0-84898740138&doi=10.4103%2f0301-4738.116481&partnerID=40&md5=31731cf8080ca66701df97e5a4c339a2
description Context: Children with learning disabilities might have difficulties to communicate effectively and give reliable responses as required in various visual function testing procedures. Aims: The purpose of this study was to compare the testability of visual acuity using the modified Early Treatment Diabetic Retinopathy Study (ETDRS) and Cambridge Crowding Cards, stereo acuity using Lang Stereo test II and Butterfly stereo tests and colour perception using Colour Vision Test Made Easy (CVTME) and Ishihara′s Test for Colour Deficiency (Ishihara Test) between children in mainstream classes and children with learning disabilities in special education classes in government primary schools. Materials and Methods: A total of 100 primary school children (50 children from mainstream classes and 50 children from special education classes) matched in age were recruited in this cross-sectional comparative study. The testability was determined by the percentage of children who were able to give reliable respond as required by the respective tests. ′Unable to test′ was defined as inappropriate response or uncooperative despite best efforts of the screener. Results: The testability of the modified ETDRS, Butterfly stereo test and Ishihara test for respective visual function tests were found lower among children in special education classes ( P < 0.001) but not in Cambridge Crowding Cards, Lang Stereo test II and CVTME. Conclusion: Non verbal or matching approaches were found to be more superior in testing visual functions in children with learning disabilities. Modifications of vision testing procedures are essential for children with learning disabilities.
publisher
issn 19983689
language English
format Article
accesstype All Open Access; Gold Open Access
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