A Validation of an Examination Protocol for Cerebral Visual Impairment Among Children in a Clinical Population in India
Introduction: Cerebral Visual Impairment (CVI) is a leading cause of vision impairment in developed and developing countries due to and increased survival of preterm and low birth weight infants. There are few data concerning the validity of protocols available to diagnose CVI. Aim: This study...
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doaj-c1d39d3d919349faa2b917ac7a8307db2020-11-25T03:12:25ZengJCDR Research and Publications Private LimitedJournal of Clinical and Diagnostic Research2249-782X0973-709X2016-12-011012NC01NC0410.7860/JCDR/2016/22222.8943A Validation of an Examination Protocol for Cerebral Visual Impairment Among Children in a Clinical Population in IndiaSwetha Sara Philip0Sherab Tsherlinga1Maya Mary Thomas2Gordon N Dutton3Richard Bowman4Assistant Professor, Department of Ophthalmology, Christian Medical College, Vellore, Tamil Nadu, India.Assistant Professor, Department of Child and Adolescent Psychiatry, Christian Medical College, Vellore, Tamil Nadu, India.Professor, Department of Neurology, Christian Medical College, Vellore, Tamil Nadu, India.Consultant Paediatric Ophthalmologist, Department of Vision Sciences, Glasgow Caledonian University, Road, Glasgow G4 0BA, UK.Consultant Paediatric Ophthalmologist, Department of Ophthalmology, International Centre for Eye Health London School of Hygiene and Medicine, London, UK.Introduction: Cerebral Visual Impairment (CVI) is a leading cause of vision impairment in developed and developing countries due to and increased survival of preterm and low birth weight infants. There are few data concerning the validity of protocols available to diagnose CVI. Aim: This study aimed to document the face, content and construct validity of an assessment protocol namely, a 15- domain, Structured Clinical Question Inventory (SCQI), which is based on structured history taking and clinical examination, for the diagnosis of CVI in a clinical population of India. Materials and Methods: This study was a retro-spective chart analysis of all children below the age of 18years, referred to the CVI clinic of a tertiary care teaching hospital in Southern India from March 2011-Feb 2012. Clinical case-notes including the SCQI findings of all children referred to the clinic were reviewed. The data were extracted after Institutional Review Board approval. Statistical Analysis: Pearson correlation coefficient, Cronbach’s alpha and exploratory factor analysis were used to document the content and construct validity of the examination protocol. Results: A total of 342 children (35.7% male, 64.3% female), with a mean age of 3.8 years (range 0-17 years, the median was 3 years) were included in the study and their data were examined. The internal consistency of the SCQI was 0.93 suggesting it as an excellent tool to characterise and profile CVI and a 2-factor model (Dorsal Stream Dysfunction and Ventral Stream Dysfunction) based on a biologically plausible model explained 63% of the variance. Conclusion: The results of using the SCQI affirm published data and endorse a theoretical construct similar across cultures. The potential diagnostic accuracy, reliability and utility of this measure for CVI needs to be studied further. The clinical use of a short version of the SCQI may be helpful to contribute to the identification of CVI, especially for middle and low-income countries.https://jcdr.net/articles/PDF/8943/22222_CE[Ra]_F(Sh)_PF1(GU_RO)_PFA(AK)_PF2(PAG).pdfdeveloping countriesdorsal stream dysfunctionstructured clinical question inventoryventral stream dysfunction |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Swetha Sara Philip Sherab Tsherlinga Maya Mary Thomas Gordon N Dutton Richard Bowman |
spellingShingle |
Swetha Sara Philip Sherab Tsherlinga Maya Mary Thomas Gordon N Dutton Richard Bowman A Validation of an Examination Protocol for Cerebral Visual Impairment Among Children in a Clinical Population in India Journal of Clinical and Diagnostic Research developing countries dorsal stream dysfunction structured clinical question inventory ventral stream dysfunction |
author_facet |
Swetha Sara Philip Sherab Tsherlinga Maya Mary Thomas Gordon N Dutton Richard Bowman |
author_sort |
Swetha Sara Philip |
title |
A Validation of an Examination Protocol for Cerebral Visual Impairment Among Children in a Clinical Population in India |
title_short |
A Validation of an Examination Protocol for Cerebral Visual Impairment Among Children in a Clinical Population in India |
title_full |
A Validation of an Examination Protocol for Cerebral Visual Impairment Among Children in a Clinical Population in India |
title_fullStr |
A Validation of an Examination Protocol for Cerebral Visual Impairment Among Children in a Clinical Population in India |
title_full_unstemmed |
A Validation of an Examination Protocol for Cerebral Visual Impairment Among Children in a Clinical Population in India |
title_sort |
validation of an examination protocol for cerebral visual impairment among children in a clinical population in india |
publisher |
JCDR Research and Publications Private Limited |
series |
Journal of Clinical and Diagnostic Research |
issn |
2249-782X 0973-709X |
publishDate |
2016-12-01 |
description |
Introduction: Cerebral Visual Impairment (CVI) is a leading
cause of vision impairment in developed and developing
countries due to and increased survival of preterm and low birth
weight infants. There are few data concerning the validity of
protocols available to diagnose CVI.
Aim: This study aimed to document the face, content and
construct validity of an assessment protocol namely, a 15-
domain, Structured Clinical Question Inventory (SCQI), which is
based on structured history taking and clinical examination, for
the diagnosis of CVI in a clinical population of India.
Materials and Methods: This study was a retro-spective chart
analysis of all children below the age of 18years, referred to
the CVI clinic of a tertiary care teaching hospital in Southern
India from March 2011-Feb 2012. Clinical case-notes including
the SCQI findings of all children referred to the clinic were
reviewed. The data were extracted after Institutional Review
Board approval.
Statistical Analysis: Pearson correlation coefficient, Cronbach’s
alpha and exploratory factor analysis were used to document
the content and construct validity of the examination protocol.
Results: A total of 342 children (35.7% male, 64.3% female),
with a mean age of 3.8 years (range 0-17 years, the median
was 3 years) were included in the study and their data were
examined. The internal consistency of the SCQI was 0.93
suggesting it as an excellent tool to characterise and profile CVI
and a 2-factor model (Dorsal Stream Dysfunction and Ventral
Stream Dysfunction) based on a biologically plausible model
explained 63% of the variance.
Conclusion: The results of using the SCQI affirm published
data and endorse a theoretical construct similar across cultures.
The potential diagnostic accuracy, reliability and utility of this
measure for CVI needs to be studied further. The clinical use
of a short version of the SCQI may be helpful to contribute to
the identification of CVI, especially for middle and low-income
countries. |
topic |
developing countries dorsal stream dysfunction structured clinical question inventory ventral stream dysfunction |
url |
https://jcdr.net/articles/PDF/8943/22222_CE[Ra]_F(Sh)_PF1(GU_RO)_PFA(AK)_PF2(PAG).pdf |
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