[A case report of congenital stapes fixation accompanied by symphalangism and hypermetropia]

A 32-year-old female with bilateral congenital stapes fixation accompanied by bilateral proximal symphalangism and bilateral hypermetropia is reported. This is the 19th case of congenital stapes fixation and symphalangism in Japan. Hypermetropia was speculated to be one of the cardinal symptoms of the disease based on the present case and cases previously reported. In this case hypermetropia was due to pure microphthalmos and this was the first report that revealed the cause of hypermetropia in the syndrome. Bilateral stapedotomy were carried out and her hearing loss was improved to the satisfactory level.