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Negavative vergence training and its effect on the divergence range and hererophoria size

Salah, Abbey, Thompson, Kathryn, Cornell, Elaine, & Moss, Nathan D. (2000) Negavative vergence training and its effect on the divergence range and hererophoria size. Australian Orthoptic Journal, 35, pp. 13-21.

Abstract

This study aimed to investigate the extent to which negative vergence training can influence the divergence range and the associated heterophoria size. Forty ocularly healthy participants (11 males and 29 females) with an age range between 17-64 years (mean age=26.6 years; SD=12.1 years) were included in the study. The participants were randomly allocated into four groups (n=10/Gp). The first group was trained using the diploscope treatment only, the second group was trained using the cat-stereograms card with additional modifications applied to it, the third group was trained using a standard cat- stereograms card without any modifications. Participants in these groups underwent training for 5 minutes, 3 times a day for 2 weeks. Lastly the control group did not undergo any training. Results indicated that there was a significant change in the mean near heterophoria size post training in all groups. This significant change was attributed to chance occurrence and may not yield any clinical relevance. A close to significant interaction between the groups training the cat-stereograms card with modifications and the group training with the standard cat-stereograms card was also found, signifying a better treatment success with modifications applied to the standard cat-stereograms card. Single case analysis of three esophoric participants, pointed to a possible future study to examine the impact of treatment on this group.

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ID Code: 7765
Item Type: Journal Article
Additional Information: For more information, please contact the author: nd.moss@qut.edu.au
Additional URLs:
ISSN: 0814-0936
Subjects: Australian and New Zealand Standard Research Classification > MEDICAL AND HEALTH SCIENCES (110000) > OPTOMETRY AND OPHTHALMOLOGY (111300)
Australian and New Zealand Standard Research Classification > MEDICAL AND HEALTH SCIENCES (110000) > OPTOMETRY AND OPHTHALMOLOGY (111300) > Vision Science (111303)
Divisions: Current > QUT Faculties and Divisions > Faculty of Health
Copyright Owner: Copyright 2000 Orthoptic Association of Australia Inc.
Deposited On: 16 May 2007
Last Modified: 15 Jan 2009 17:32

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