Surgeons use glaucoma implants in patients with uncontrolled intraocular pressure (IOP) and poor surgical prognosis with trabeculectomy. We report two cases of late-onset proptosis subsequent to a Baerveldt glaucoma implant (Advanced Medical Optics, Santa Clara, CA, USA) along with clinical, neuroimaging and, in one case, histopathology findings. The Institutional Review Board of Legacy Health System approved this study.

Report of two cases

Case 1

We evaluated a 70-year-old white woman with mixed-mechanism glaucoma. She had a history of an anterior chamber intraocular lens, trauma, pseudophakic bullous keratopathy, corneal transplant, intraocular lens exchange and chronic angle-closure glaucoma. She had no medical history of inflammatory disorders or other significant past medical history. Her ophthalmologist performed a trabeculectomy and 2 years later, a 250 mm2 Baerveldt glaucoma implant (BGI) in her left eye.

She was examined regularly in the glaucoma clinic. She began to complain of tearing and difficulty closing her eyelid 16 months after the BGI surgery. She was found to have proptosis, with exophthalmometry measurements of 14 and 19 mm of the right and left eye, respectively. She also had …