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Clinical features associated with the jaw winking syndrome
The American Orthoptic Journal
|December 15, 2010
Summary
Jaw winking is often linked with eye movement disorders like strabismus and amblyopia. Early attention to extraocular motility is crucial for managing these associated conditions in patients with jaw winking.
Area of Science:
- Ophthalmology
- Pediatric Ophthalmology
- Neuro-ophthalmology
Background:
- Jaw winking (Marcus Gunn phenomenon) is characterized by upper eyelid ptosis linked to pterygoid muscle stimulation.
- Associated clinical features include strabismus, amblyopia, and refractive errors.
Purpose of the Study:
- To investigate the prevalence and types of associated ophthalmic conditions in patients with jaw winking.
- To analyze the relationship between jaw winking and conditions such as strabismus and amblyopia.
Main Methods:
- Retrospective chart review of 33 patients diagnosed with jaw winking.
- Data collection included strabismus presence/type, visual acuity, refractive error, affected eye, and sex.
Main Results:
- Strabismus occurred in 69.7% of patients, most commonly double elevator palsy.
- Amblyopia was present in 51.5%, often linked to strabismus and/or anisometropia.
- A majority of affected eyes were left (57.6%), and most patients were female (63.6%).
Conclusions:
- Patients with jaw winking require thorough examination of extraocular motility due to frequent elevation deficiencies.
- Amblyopia is common, particularly in those with co-existing strabismus and/or anisometropia.
- The association with Duane syndrome and similar demographic patterns warrants further investigation.
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