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Idiopathic tinnitus concomitant with eye closure.

Masafumi Ohki¹, Hiromu Kato

¹Department of Otolaryngology, Saitama Medical Center, Saitama, Japan. m-ohki@umin.ac.jp

Otology & Neurotology : Official Publication of the American Otological Society, American Neurotology Society [And] European Academy of Otology and Neurotology

|January 5, 2012

Summary

Idiopathic tinnitus linked to eye closure was observed in two patients. Reduced tympanic membrane compliance during eye closure suggests stapedial muscle contraction as the cause.

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Area of Science:

Otolaryngology
Neurology
Audiology

Background:

Idiopathic tinnitus can present with unusual triggers.
Synchronous tinnitus with eye closure is a rare phenomenon.

Observation:

Two patients reported intermittent tinnitus coinciding with eye closure or blinking.
One patient exhibited inward tympanic membrane movement during eye closure.
No facial nerve palsy or myoclonus was present.

Findings:

Both patients showed decreased compliance in impedance audiometry during eye closure.
Tinnitus was attributed to muscular tinnitus caused by stapedial muscle contraction.

Implications:

This case report highlights a rare form of muscular tinnitus.
Impedance audiometry compliance changes are key for diagnosing stapedial muscular tinnitus.
Further research into eye-closure-induced tinnitus is warranted.