Stereoacuity Improvement using Random-Dot Video Games



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Martín González, Santiago and Portela Camino, Juan A and Ruiz Alcocer, Javier and Illarramendi Mendicute, Igor and Garrido Mercado, Rafaela (2020) Stereoacuity Improvement using Random-Dot Video Games. Journal of Visualized Experiments, 155 . e60236. ISSN 1940-087X

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Conventional amblyopia therapy involves occlusion or penalization of the dominant eye, though these methods enhance stereoscopic visual acuity in fewer than 30% of cases. To improve these results, we propose a treatment in the form of a video game, using random-dot stimuli and perceptual learning techniques to stimulate stereoacuity. The protocol is defined for stereo-deficient patients between 7-14 years of age who have already received treatment for amblyopia and have a monocular best corrected distance visual acuity of at least 0.1 logMAR. Patients are required to complete a perceptual learning program at home using the video game. While compliance is stored automatically in the cloud, periodic optometry center visits are used to track patient evolution and adjust the game's stereoscopic demand until the smallest detectable disparity is achieved. The protocol has proved to be successful, and effectiveness is gauged in terms of a two-level gain on a random stereoacuity test (global stereoacuity or cyclopean stereoacuity reference test). Moreover, the random-dot stimuli learning transfers to medial lateral stereoscopic acuity according to a Wirt Circles test, in which success criteria is a final stereoacuity of over 140", and the attained enhancement corresponds to no less than two levels of stereoscopic acuity. Six months later, a random-dot stereoacuity test recorded no reduction in the stereoacuity that was achieved.

Item Type:Article
Uncontrolled Keywords:Behavior, Issue 155, amblyopia, Stereopsis, Video-games, Random-dot, Perceptual learning, Compliance
Subjects:Sciences > Computer science > Software
Medical sciences > Optics > Optometry
Medical sciences > Optics > Physiological optics
ID Code:59174
Deposited On:24 Feb 2020 14:42
Last Modified:24 Feb 2020 15:18

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