Fig. 1. Histopathologic slide of the iridocorneal angle of a patient with congenital syphilis. Granulomatous inflammation is present on the surface of this eye, and the angle is closed by peripheral anterior synechieae. (Courtesy of Robert Folberg, MD. Copyright University of Iowa. Alward WLM: Color Atlas of Gonioscopy. London, Mosby-Year Book, 1994.)