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Updated: Jul 18, 2026

A Comparative Study of Drug Delivery Methods Targeted to the Mouse Inner Ear: Bullostomy Versus Transtympanic Injection
Published on: March 8, 2017
Topical ocular drug delivery to inner ear disease and sinusitis
Tatsuya Mimura1, Hideharu Funatsu, Tomohiko Usui
1The Schepens Eye Research Institute, Department of Ophthalmology, Harvard Medical School, 20 Staniford Street, Boston, MA 02114, USA. mimurat-tky@umin.ac.jp
Abstract:
Oral steroids are the main therapy for sensorineural deafness. We present the rare case of a patient whose hearing loss associated with inflammation of the inner ear and chronic sinusitis were improved with topical steroid therapy. A 68-year-old male presented with scleritis in the left eye, inflammation of the inner ear and chronic sinusitis. He received oral prednisolone 10 mg/d. However, the oral prednisolone was discontinued due to severe side effects. Topical administration of 0.1% betamethasone sodium phosphate improved the scleritis and incidentally also relieved his symptoms of recurrent otitis and sinusitis after several days. Audiometry revealed recovered acoustic sensation in the right ear, from 50 dB to 20 dB, and in the left ear from 70 to 35 dB with 1,000 Hz. Topical ocular drug delivery of steroids may be effective for inner ear disease and sinusitis in patients with systemic side effects to oral steroids.
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