Orbital myositis involving the oblique muscles associated with herpes zoster ophthalmicus.

An 81-year-old woman with right orbital inflammation and acute retinal necrosis following Herpes zoster ophthalmicus was evaluated and treated. CT showed right massive superior and inferior oblique enlargement and moderate enlargement of the remaining extraocular muscles with tendon sparing. The myositis and acute retinal necrosis dramatically improved following prednisone and intravenous acyclovir therapy.