A new prism use for treatment of cyclo-deviation in trochlear nerve injury.

Visual problems are common in patients with severe TBI. Diplopia is among the most frustrating of visual disturbances for patients, due to its functional consequences. This is further compounded by often slow, and at times, incomplete or partial recovery over six months or longer. Ocular cranial nerve injuries (particularly trochlear nerve) occur in 0.2%-1.4% of severe TBI patients. This paper presents a new prism treatment application for treating rotational diplopia arising from Trochlear nerve injury.