ArticleJournal of eye movement research2026
Changes in Distance Ocular Deviation After Smartphone Viewing in Young Adults Without Manifest Strabismus.
Article in Journal of eye movement research, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
backgroundThis prospective observational study assessed acute changes in distance ocular deviation after brief smartphone viewing in young adults without manifest strabismus and identified factors associated with the magnitude of change.
methodsFifty-nine healthy young adults without strabismus (aged 20-30 years; mean ± standard deviation, 23.2 ± 2.5 years) wore a head-mounted eye-tracking system and viewed a smartphone for 30 min. Ocular deviation angles at near and distance fixation were measured immediately before and after smartphone viewing. During smartphone viewing, eye-movement parameters and smartphone distance were continuously recorded.
resultsBefore smartphone viewing, the mean deviation angles were -6.2 ± 6.8
conclusionsThirty minutes of smartphone viewing was followed by a reduction in exodeviation at near and distance fixation in young adults without manifest strabismus. Greater baseline exodeviation was associated with a larger reduction, and low-velocity gaze movements predominated.
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