American Journal of Neuroradiology 24:1769-1771, October 2003
© 2003 American Society of Neuroradiology
Case Report
HEAD AND NECK
CT Characteristics of Intraocular Perfluoro-N-Octane
a Department of Ophthalmology, Harvard Medical School, Boston, Massachusetts
b Department of Radiology, Massachusetts Eye and Ear Infirmary, Harvard Medical School, Boston, Massachusetts
Address correspondence and reprint requests to Dr. Donald J. DAmico, Retina Service FL 12, Massachusetts Eye and Ear Infirmary, 243 Charles Street, Boston, MA 02114
Summary: Perfluoro-N-octane (PFO) is a heavy liquid that is used as an aid for complicated retinal surgical procedures. Although PFO is usually removed intraoperatively, the radiographic appearance of retained PFO may mimic an intraocular foreign body or vitreous hemorrhage. As the use of PFO in retinal procedures has become more widespread, recognition of its imaging appearance has become important in the differential diagnosis of intraocular foreign body and ocular trauma.