Value of oculomyodynamometry in traumatic diplopia. Direct ocular muscle force measurements.

In 21 patients with traumatic diplopia, oculomyodynamometry (OMD) was used to examine the force of the extrinsic ocular muscles. In nine patients with blow-out fracture of the orbit, the greatest impairment in the active force and function of the incarcerated muscle was found in linear fractures. In 12 cases of traumatic paresis of the cranial nerves, OMD enabled the degree of paresis of particular extraocular muscles to be assessed, was helpful in establishing a correct diagnosis as well as prognosis for the restoration of function of the affected muscles, and provided data useful in planning the operative procedure.