The challenges of developing a contrast-based video game for treatment of amblyopia
Hussain, Zahra; Astle, Andrew T.; Webb, Ben S.; McGraw, Paul V.
Andrew T. Astle firstname.lastname@example.org
Ben S. Webb
PAUL MCGRAW email@example.com
Professor of Visual Neuroscience
© 2014 Hussain, Astle, Webb and Mcgraw. Perceptual learning of visual tasks is emerging as a promising treatment for amblyopia, a developmental disorder of vision characterized by poor monocular visual acuity. The tasks tested thus far span the gamut from basic psychophysical discriminations to visually complex video games. One end of the spectrum offers precise control over stimulus parameters, whilst the other delivers the benefits of motivation and reward that sustain practice over long periods. Here, we combined the advantages of both approaches by developing a video game that trains contrast sensitivity, which in psychophysical experiments, is associated with significant improvements in visual acuity in amblyopia. Target contrast was varied adaptively in the game to derive a contrast threshold for each session. We tested the game on twenty amblyopic subjects (ten children and ten adults), who played at home using their amblyopic eye for an average of 37 sessions (approximately 11 hours). Contrast thresholds from the game improved reliably for adults but not for children. However, logMAR acuity improved for both groups (mean: 1.3 lines; range: 0- 3.6 lines). We present the rationale leading to the development of the game and describe the challenges of incorporating psychophysical methods into game-like settings.
|Journal Article Type||Article|
|Publication Date||Nov 3, 2014|
|Journal||Frontiers in Psychology|
|Peer Reviewed||Peer Reviewed|
|APA6 Citation||Hussain, Z., Astle, A. T., Webb, B. S., & McGraw, P. V. (2014). The challenges of developing a contrast-based video game for treatment of amblyopia. Frontiers in Psychology, 5(OCT), https://doi.org/10.3389/fpsyg.2014.01210|
|Keywords||Anisometropia, Binocular, Contrast sensitivity, Development, Perceptual learning, Strabismus, Visual acuity|
|Copyright Statement||Copyright information regarding this work can be found at the following address: http://creativecommons.org/licenses/by/4.0|
|Additional Information||This Document is Protected by copyright and was first published by Frontiers. All rights reserved. it is reproduced with permission.|
Copyright information regarding this work can be found at the following address: http://creativecommons.org/licenses/by/4.0
You might also like
The effect of normal aging and age-related macular degeneration on perceptual learning
The Effect of Aging on Crowded Letter Recognition in the Peripheral Visual Field
A Weber-like law for perceptual learning
The pattern of learned visual improvements in adult amblyopia
Can human amblyopia be treated in adulthood?