Vision Therapy Games
three modules patients ask to repeat

What the research supports

• 1–4Checkerboards are the standard visual stimulus. From newborn pattern preference to the clinical VEP and brain imaging.
• 5–8Rotating patterns alone do not treat amblyopia. Controlled trials of the CAM stimulator found the gains came from occlusion and the attention task.
• 9–12Dichoptic, contrast-rebalanced games are the best-supported digital approach. Two FDA-cleared products have randomized trials behind them; older, previously treated children showed no benefit.
• 13–14Office vergence therapy is proven for convergence insufficiency, but did not improve reading.
• 15Pattern safety limits follow the Epilepsy Foundation consensus.

Efficacy of these specific modules has not been tested. They are supervised exercises with logging, not a diagnostic or a cure.

References

1. 01Fantz RL. Pattern vision in newborn infants. Science 1963;140:296-7
2. 02Brennan WM, Ames EW, Moore RW. Age differences in infants' attention to patterns of different complexities. Science 1966;151:354-6
3. 03Odom JV et al. ISCEV standard for clinical visual evoked potentials (2016 update). Doc Ophthalmol 2016;133:1-9
4. 04Engel SA, Glover GH, Wandell BA. Retinotopic organization in human visual cortex and the spatial precision of functional MRI. Cereb Cortex 1997;7:181-92
5. 05Campbell FW, Hess RF, Watson PG, Banks R. Preliminary results of a physiologically based treatment of amblyopia. Br J Ophthalmol 1978;62:748-55
6. 06Keith CG et al. Clinical trial of the use of rotating grating patterns in the treatment of amblyopia. Br J Ophthalmol 1980;64:597-606
7. 07Nyman KG et al. Controlled study comparing CAM treatment with occlusion therapy. Br J Ophthalmol 1983;67:178-80
8. 08Peregrin J et al. The use of rotating checkerboard patterns in the treatment of amblyopia. Acta Neurobiol Exp 1987;47:111-20
9. 09Hess RF, Thompson B. Amblyopia and the binocular approach to its therapy. Vision Res 2015;114:4-16
10. 10Xiao S et al. Randomized controlled trial of a dichoptic digital therapeutic for amblyopia. Ophthalmology 2022;129:77-85
11. 11Wygnanski-Jaffe T et al. An eye-tracking-based dichoptic home treatment for amblyopia: a multicenter randomized clinical trial. Ophthalmology 2023;130:274-85
12. 12PEDIG. A randomized trial of binocular Dig Rush game treatment for amblyopia in children aged 7 to 12 years. Ophthalmology 2019;126:456-66
13. 13CITT Study Group. Randomized clinical trial of treatments for symptomatic convergence insufficiency in children. Arch Ophthalmol 2008;126:1336-49
14. 14CITT-ART Investigator Group. Effect of vergence/accommodative therapy on reading in children with convergence insufficiency. Optom Vis Sci 2019;96:836-49
15. 15Harding G, Wilkins AJ, Erba G et al. Photic- and pattern-induced seizures: expert consensus of the Epilepsy Foundation of America Working Group. Epilepsia 2005;46:1423-5

What the trials add up to

• U1–U7In the USA the big randomized trials are mixed. Dichoptic iPad games beat sham play and helped 4–6-year-olds short-term, but the PEDIG trials in 7–12-year-olds and teenagers found no advantage over patching or spectacles. The dichoptic video therapeutic (Luminopia) is the one with a clear win and FDA authorization.
• U8–U10Adults can change. Berkeley and Rochester work shows 40–80 hours of game play with the amblyopic eye improves acuity and contrast sensitivity in adults, roughly 0.14 logMAR.
• U11For convergence insufficiency, office-based therapy is the proven form. Cochrane 2020 rates the evidence high-certainty.
• C1–C9Chinese centres report gains from dichoptic, flicker-glass, network and VR/AR training of roughly 0.06–0.15 logMAR, plus better compliance than patching; a 2025 West China meta-analysis pools a moderate effect in adults. Most are single-centre studies with short follow-up.
• —Our claim stays the same. These are other teams' products and protocols. LookyBox modules practice the same skills with logging; efficacy of our implementation has not been tested. Also relevant but not USA/China: the BRAVO trial (NZ/Canada/Hong Kong, JAMA Ophthalmol 2018) found a binocular game no better than a placebo game in older children and adults.

United States

1. U1Holmes JM et al. (PEDIG). Effect of a binocular iPad game vs part-time patching in children aged 5 to 12 years with amblyopia: a randomized clinical trial. JAMA Ophthalmol 2016;134:1391-400
   Mayo Clinic / Jaeb Center. 16 weeks: game +1.05 lines vs patching +1.35 lines — the game did not beat patching.
2. U2Kelly KR et al. Binocular iPad game vs patching for treatment of amblyopia in children: a randomized clinical trial. JAMA Ophthalmol 2016;134:1402-8
   Retina Foundation of the Southwest, Dallas. 2 weeks: game +1.5 lines vs patching +0.7 lines.
3. U3Birch EE et al. Binocular iPad treatment for amblyopia in preschool children. J AAPOS 2015;19:6-11
   Dallas. Acuity 0.43 → 0.34 logMAR at 4 weeks with the dichoptic games; sham games no change.
4. U4Manh VM et al. (PEDIG). A randomized trial of a binocular iPad game versus part-time patching in children aged 13 to 16 years with amblyopia. Am J Ophthalmol 2018;186:104-15
   Teenagers: game +3.5 letters vs patching +6.5 letters — not better than patching, possibly worse; adherence was poor.
5. U5Pediatric Eye Disease Investigator Group. A randomized trial of binocular Dig Rush game treatment for amblyopia in children aged 7 to 12 years. Ophthalmology 2019;126:456-66
   Previously treated children: no acuity or stereo benefit from 4 or 8 weeks of the game over spectacles alone.
6. U6Manny RE et al. (PEDIG). A randomized trial of binocular Dig Rush game treatment for amblyopia in children aged 4 to 6 years. Optom Vis Sci 2022;99:213-27
   Ages 4–6: +1.1 lines with the game vs +0.6 with spectacles at 4 weeks; the advantage was gone by 8 weeks.
7. U7Xiao S et al. Randomized controlled trial of a dichoptic digital therapeutic for amblyopia. Ophthalmology 2022;129:77-85
   Luminopia, Cambridge MA. 12 weeks: +1.8 lines vs +0.8 with glasses alone; stopped early for success; FDA-authorized.
8. U8Li RW, Ngo C, Nguyen J, Levi DM. Video-game play induces plasticity in the visual system of adults with amblyopia. PLoS Biol 2011;9:e1001135
   UC Berkeley. 40–80 h of play with the amblyopic eye improved a wide range of visual functions in adults; a cross-over design showed it was not patching alone.
9. U9Vedamurthy I et al. A dichoptic custom-made action video game as a treatment for adult amblyopia. Vision Res 2015;114:173-87
   Rochester / Berkeley. Acuity improved about 0.14 logMAR (≈28%) in the game group, in both anisometropic and strabismic adults.
10. U10Gambacorta C et al. An action video game for the treatment of amblyopia in children: a feasibility study. Vision Res 2018;148:1-14
    Berkeley. Feasibility of a dichoptic action game in children; frames it against the ≈1 line per ≈120 h that patching yields.
11. U11Scheiman M et al. Interventions for convergence insufficiency: a network meta-analysis. Cochrane Database Syst Rev 2020;12:CD006768
    Salus / Ohio State / SCCO. High-certainty evidence that office-based vergence/accommodative therapy beats placebo for convergence insufficiency.

China

1. C1Liu XY et al. Dichoptic perceptual training in children with amblyopia with or without patching history. Invest Ophthalmol Vis Sci 2021;62:4
   Xuzhou Medical University / Peking University. Amblyopic-eye acuity +0.15 logMAR without patching history, +0.06 with; stereoacuity improved 42–64%.
2. C2Li J et al. Dichoptic training improves contrast sensitivity in adults with amblyopia. Vision Res 2015;114:161-72
   Zhongshan Ophthalmic Center, Guangzhou (with Auckland). Contrast sensitivity improved across all spatial frequencies tested.
3. C3Min SH et al. A randomized clinical trial comparing Eyetronix flicker glass and patching for treatment of amblyopia in children. Front Neurosci 2021;15:622729
   Wenzhou Medical University. 12 weeks: flicker glass +0.13 logMAR vs patching +0.21 logMAR.
4. C4Zhou J et al. Inverse occlusion: a binocularly motivated treatment for amblyopia. Neural Plast 2019;2019:5157628
   Wenzhou (with McGill). Short-term patching of the amblyopic eye: average acuity gain 0.13 logMAR with improved binocular balance.
5. C5Zheng CY et al. A randomized study of network-based perception learning in the treatment of amblyopia children. Int J Ophthalmol 2022;15:807-12
   Fudan University Eye & ENT Hospital, Shanghai. About 2 lines gained on average at 3 months in both arms.
6. C6Zhao J et al. Digital therapy for visual acuity and binocular function in children with anisometropic amblyopia. Cyberpsychol Behav Soc Netw 2023;26:842-8
   Leshan / Guangxi. 3 months of digital therapy improved acuity, suppression and second-order stereopsis in children aged 8–13.
7. C7Li L et al. Comparison of compliance among patients with pediatric amblyopia undergoing virtual reality-based and traditional patching training. Front Public Health 2022;10:917565
   Fujian Provincial Hospital (with Schepens). The smartphone VR game had better parent- and child-rated compliance than patching.
8. C8Tan F et al. Short-term plastic visual perceptual training based on virtual and augmented reality technology in amblyopia. J Ophthalmol 2022;2022:8967319
   West China Hospital, Sichuan. VR and AR training improved acuity and fine stereopsis; AR also improved contrast sensitivity at all spatial frequencies.
9. C9Ming X et al. A systematic review and meta-analysis of perceptual learning and video game training for adults with monocular amblyopia. Ophthalmol Ther 2025
   West China Hospital. Pooled effect on acuity: standardized mean difference −0.68 favouring training.
10. C10Fu E et al. Video game treatment of amblyopia. Surv Ophthalmol 2022;67:830-42
    Shenzhen Eye Hospital. Review of game-based treatment and the compliance problem with patching.
11. C11Dai Y et al. Advances in behavioral vision training for the treatment of childhood amblyopia: a narrative review. Transl Pediatr 2026
    Sichuan University. Reviews perceptual learning, dichoptic and game-based training, adherence and combination strategies.