APACG was diagnosed based on the presence of the following characteristics [15-17]: (1) acute increases in IOP and angle closure; (2) acute
ophthalmalgia, blurred vision, or nausea and vomiting; and (3) ischemic damage caused by acute ocular hypertension, as well as by ciliary or mixed injection, corneal edema, and glaucomatous flecks.
Three months later, the patient presented with progressive right ophthalmalgia. No tumor or lymphatic nodes were found in the pharynx and nasopharynx or in the cervical region.
After treatment with gamma knife radiosurgery, ophthalmalgia, abduction disorder and blephroptosis were improved in this case, and the mass of the right cavernous sinus shrunk markedly as was shown by MRI.