This protocol covers abducens nerve palsy in patients under 18 years of age who carry a meaningful risk of amblyopia. Young children with abducens nerve palsy are vulnerable to amblyopia due to ocular misalignment occurring during the critical period of visual development.
Occlusion therapy — including alternate eye patching or opaque lenses such as Bangerter foils as the primary strategy for amblyopia management — has not achieved equal visual development between the eyes and absence of amblyopia, or compliance is poor, or spontaneous recovery is unlikely. An adjunctive intervention is therefore indicated.
The structured protocol for this scenario incorporates an injection-based adjunctive intervention targeting the musculature of the affected eye to facilitate earlier ocular alignment and restoration of binocular fusion. The complete clinical decision framework — including patient selection, procedural details, and follow-up criteria — is available via the link below.
Earlier ocular alignment and restoration of binocular fusion, promoting equal visual development and reducing the risk of permanent amblyopia.
DOI: 10.1016/j.apjo.2026.100297
Young children with abducens nerve palsy are vulnerable to amblyopia. It can also be employed to promote equal visual development and prevent amblyopia in children.
In patients with poor compliance to occlusion or a low likelihood of spontaneous recovery (e.g. complete or bilateral palsies), botulinum toxin injection may be considered as an adjunctive intervention to facilitate earlier ocular alignment and fusion, thereby reducing the risk of amblyopia.
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