DIAGNOSIS: A tentative diagnosis of anterior segment ischemia was made. The patient was admitted and received 60 mg of prednisone once that evening and once the next morning, in addition to ranitidine, 150 mg p.o., b.i.d. She received topical prednisolone acetate 1% every hour while awake and atropine, 1%, b.i.d., OD.

CLINICAL COURSE: The following day, the corneal edema appeared worse, and the patient was administered humidified oxygen by face mask and ocular mask. She received prednisone 20 mg t.i.d. Prednisolone acetate 1% was applied every 2 hours around the clock, and atropine was discontinued in favor of cyclopentolate q.i.d. The next day, the corneal edema had worsened, with shallowing of the anterior chamber and a decrease in the intraocular pressure to 2 mm Hg. The patient received a transfusion with 3 units of packed red blood cells. Over the next few days, her vision improved to hand motion, but the intraocular pressure remained 2 mm Hg. Repeat ultrasound revealed a 50% bubble in the vitreous cavity with retinal attachment and a peripheral choroidal detachment. Delayed flow in the conjunctival capillaries remained evident on slit lamp examination at high magnification.

	Appearance of cornea 1 week after initiation of systemic prednisone and eye mask as well as face mask oxygen delivery. Note marked corneal edema has begun to resolve. Cataract is evident.