LAUSR

A 46-year-old man presented with foreign body sensation in right eye and vesicular rash in his right forehead since 7 days ago. His past medical history was unremarkable. Best Corrected Visual Acuity (BCVA) was 6/10 in right eye and 10/10 in left eye. He had right interstitial keratitis and oral acyclovir 800 mg 5 times per day was started for him. After 4 days, visual acuity of right eye decreased to 2/10. The pupil was dilated and non-reactive to light and optic disc was pink. In addition, there was chemosis, complete ptosis, proptosis (2 mm), complete limitation of adduction, abduction, elevation and depression (Fig. 1a) and decreased corneal sensation in right eye. Intraocular pressure (IOP) was normal. Brain MRI was unremarkable except for thickening of right extraocular muscles. Oral prednisolone 1 mg/kg/day and topical betamethasone were started. After 3 months, visual acuity in right eye was 6/10. At 9 months, ptosis and eye movements were completely resolved (Fig. 1b), but acuity was remained 6/10 because of corneal opacity and optic disc was still pink.