June 2023
Volume 64, Issue 8
Open Access
ARVO Annual Meeting Abstract  |   June 2023
Towards Establishing a Novel Stereoscopic Treatment for Childhood Amblyopia Using 3-Dimensional Video Games
Author Affiliations & Notes
  • Roger W Li
    College of Optometry, Nova Southeastern University, Fort Lauderdale, Florida, United States
  • Michelle Marie Antonucci
    Herbert Wertheim School of Optometry and Vision Science, University of California Berkeley, Berkeley, California, United States
  • Betty Li
    Herbert Wertheim School of Optometry and Vision Science, University of California Berkeley, Berkeley, California, United States
    College of Optometry, Nova Southeastern University, Fort Lauderdale, Florida, United States
  • Charlene Yanyin Li
    College of Optometry, Nova Southeastern University, Fort Lauderdale, Florida, United States
  • Sandy Wingshan Chat
    College of Optometry, Nova Southeastern University, Fort Lauderdale, Florida, United States
  • Dennis M Levi
    Herbert Wertheim School of Optometry and Vision Science, University of California Berkeley, Berkeley, California, United States
  • Footnotes
    Commercial Relationships   Roger Li None; Michelle Antonucci None; Betty Li None; Charlene Li None; Sandy Chat None; Dennis Levi None
  • Footnotes
    Support  Research to Prevent Blindness Disney Award for Amblyopia Research, NIH Grant RO1EY020976, NSU PFRDG Grant 334909 and NSU HPD Grant 334637
Investigative Ophthalmology & Visual Science June 2023, Vol.64, 1450. doi:
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      Roger W Li, Michelle Marie Antonucci, Betty Li, Charlene Yanyin Li, Sandy Wingshan Chat, Dennis M Levi; Towards Establishing a Novel Stereoscopic Treatment for Childhood Amblyopia Using 3-Dimensional Video Games. Invest. Ophthalmol. Vis. Sci. 2023;64(8):1450.

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      © ARVO (1962-2015); The Authors (2016-present)

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Abstract

Purpose : We recently showed that playing three-dimensional (3D) video games improves vision in adults with amblyopia (Li et al, 2018). The present study was aimed at developing a modified treatment protocol, consisting of shorter gaming sessions, for children with amblyopia.

Methods : Eight children with non-strabismic amblyopia participated. Crowded visual acuity ranged from 20/32 to 20/200. In the training phase, the participants were required to play 3D video games for a total of 40 hours, 1 hour per session, over ~8 weeks. During gaming, they wore a Bangerter filter over the dominant eye in order to reduce its crowded visual acuity by logMAR 0.2 worse than that of the amblyopic eye. A 32-inch 3D television was used to display stereoscopic game content with a Sony PlayStation 3 system. A pair of liquid crystal shutter glasses enabled stereo images to be delivered to each eye. We measured a range of visual functions in pre-training and post-training sessions.

Results : After playing 3D video games for 40 hours, all participants showed a significant improvement in visual acuity, 0.15 LogMAR (30%), for both crowded letters (pair t=5.02; p=0.002) and isolated letters (paired t=4.74, p=0.002). They also demonstrated a significant accompanying improvement in stereoacuity (40%, Stereo Randot Test; t=2.46, p=0.04).

Conclusions : Our findings suggest that 3D video games may have important therapeutic applications in childhood amblyopia. Unlike monocular and dichoptic video games, stereoscopic 3D video games may have a special benefit for the recovery of stereo vision in amblyopia. This new binocular technique, focusing on stereo vision, may add an effective approach to the armamentarium of amblyopia treatments.

This abstract was presented at the 2023 ARVO Annual Meeting, held in New Orleans, LA, April 23-27, 2023.

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