Discoloration of Silicone Intraocular Lenses

To the Editor. —Milauskas¹recently reported the presence of brown discoloration in 15 silicone intraocular lenses implanted between March 1986 and December 1989. The lens manufacturers were IOLAB Corp, Claremont, Calif, and STAAR Surgical Co, Monrovia, Calif. We have been following up two patients with brown discoloration of the central region of their Allergan Medical Optics SI18NB lens. Report of Cases. —Case 1. —A 40-year-old white man was referred to one of us (D.D.K.) with a diagnosis of probable steroid-related cataracts. He had Churge-Strauss syndrome with pulmonary, cardiac, peripheral nervous system, and testicular involvement. On March 20, 1991, we performed phacoemulsification of the left eye withimplantation into the capsular bag of an Allergan Medical Optics SI18NB 19.5-diopter (D) silicone posterior chamber intraocular lens. On postoperative day 1 we did not clearly see lens details due to a miotic pupil and small hyphema.