alexa Impact of Computer Experience on the Viability and Repeatability of the Moorfields Motion Displacement Test in a Developing and Underserved African Setting | Abstract
ISSN: 2155-9570

Journal of Clinical & Experimental Ophthalmology
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Research Article

Impact of Computer Experience on the Viability and Repeatability of the Moorfields Motion Displacement Test in a Developing and Underserved African Setting

James Loughman1,2, Carmen Gonzalez Alvarez1, Gay Mary Verdon-Roe3, Roger Anderson3,4, Ramos Antonio Manuel5 and Kovin Naidoo2,6
1Optometry Department, College of Sciences & Health, Dublin Institute of Technology, Kevin Street, Dublin 8, Ireland
2African Vision Research Institute, Faculty of Health Sciences, University of KwaZulu Natal, Durban, South Africa
3NIHR Biomedical Research Centre, Moorfields Eye Hospital NHS Foundation Trust and UCL Institute of Ophthalmology, London, United Kingdom
4School of Biomedical Sciences, University of Ulster, Coleraine, Northern Ireland
5Optometry Department, Faculty of Health Sciences, Universidade Lúrio, Nampula, Mozambique
6Brien Holden Vision Institute, Durban, South Africa
Corresponding Author : Prof. James Loughman
Optometry Department, College of Sciences & Health
Dublin Institute of Technology, Kevin Street, Dublin 8, Ireland
Tel: +353 1 4022841
Fax: +353 1 4024915
E-mail: [email protected]
Received July 13, 2013; Accepted October 31, 2013; Published November 03, 2013
Citation: Loughman J, Alvarez CG, Verdon-Roe GM, Anderson R, Manuel RA, et al. (2013) Impact of Computer Experience on the Viability and Repeatability of the Moorfields Motion Displacement Test in a Developing and Underserved African Setting. J Clin Exp Ophthalmol 4:304. doi:10.4172/2155-9570.1000304
Copyright: © 2013 Loughman J, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
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Abstract

Background: The current study was designed to explore the effect of computer experience on the viability and testretest repeatability of the Moorfields Motion Displacement Test (MMDT), a novel computer-driven glaucoma screening device, in an African community setting.

Methods: 164 healthy subjects were recruited from a semi-rural Mozambican environment, and stratified according to computer experience (computer naïve: n=85, computer familiar: n=79). A suprathreshold screening test algorithm was employed, and the global probability of true damage (GPTD), testing time (TT) and false positive (FP) response rate were recorded. The visual field test was conducted twice on the same eye, and results compared to determine intra-sessional repeatability.

Results: No inter-group differences in GPTD or TT (p>0.05) were observed between computer subgroups, although FP response rate was significantly higher among computer naïve subjects (p=0.00 for both tests). No inter-sessional differences were observed for GPTD, TT and FP (p>0.05 for all) for either subgroup. A statistically significant positive correlation was found between repeat GPTD, TT and FP measures for all subgroups (P<0.05 for all). Bland Altman analysis revealed good repeatability for both subgroups.

Conclusion: This is the first study to evaluate the effect of computer experience on the test-retest repeatability of the MMDT device in an African setting, which is important given the glaucoma screening challenges and the disparities in access to information technology that are unique to developing countries. The results support its general repeatability for those community members likely to be encountered in developing countries, without prior experience of computers.

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