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Updated: Jul 9, 2026

Using Eye-tracking to Assess the Relative Importance of Visual and Vestibular Input to Subcortical Motion Processing in the Roll Plane
Published on: August 22, 2025
Oxybutynin-associated esotropia
Elaine Y H Wong1, Anton Harding, Lionel Kowal
1Ocular-Motility Clinic, The Royal Victorian Eye and Ear Hospital, Melbourne, Australia. e.wong@unimelb.edu.au
Abstract:
A 5-year-old girl with previously unrecognized hyperopia of approximately +3.00 D developed esotropia while being treated with oxybutynin for enuresis. The esotropia disappeared with cessation of oxybutynin and correction of her hyperopia. When the hyperopic correction was removed, she had a small esophoria. The esotropia was presumably triggered by the anticholinergic effect of oxybutynin, which reduced the ability to accommodate. The increased accommodative effort for vision generated an esotropia as a result of the accommodative convergence/accommodation ratio.
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