Abstract
A patient with chronic otitis media developed sensorineural hearing loss caused by ear drops containing an aminoglycoside antibiotic.
Our study of this case indicates that the production of ototoxicity by ear drops in patient with chronic otitis media is influenced not only by drug factors such as volume, character, and local factors such as the nature of the otitis media, tubal function, degree of otorrhea, but also by patient factors, such as consciousness of hearing loss and correct understanding of the purpose and use of the otic solution.