Wegener granulomatosis causing compressive optic neuropathy in a child.

Wegener granulomatosis is an uncommon illness in children that is known to cause myriad ophthalmic complications, but it is rarely a cause of compressive optic neuropathy. A 17-year-old Hispanic boy with Wegener granulomatosis developed unilateral loss of vision, pain, and proptosis of the left eye. CT findings revealed enlargement of bilateral lacrimal glands with compression of the left optic nerve. The patient was admitted for high-dose intravenous corticosteroids and daily oral cyclophosphamide treatment. The patient's vision, pain, and proptosis improved dramatically, and he is now stable on mycophenolate mofetil and prednisone.