FOLLOW-UP AND ULTRASONOGRAPHIC EXAMINATION OF PATIENTS WITH MACULAR PSEUDO-OPERCULUM

Twenty-nine patients (30 eyes) with pseudo-opercula were followed up f or six to 65 months (mean, 24 months). Visual acuity was 20/30 or bett er in all but one eye that was amblyopic. Only one eye developed a dec rease in visual acuity and changes interpreted as a stage 1 (foveal de tachment induced by tangential traction of the cortical vitreous) impe nding hole. After vitrectomy visual acuity returned to 20/20. Ultrason ographic examination confirmed the presence of pseudo-opercula in all 22 eyes examined. We concluded that the a pseudo-operculum is a favora ble prognostic sign and that its presence is demonstrable ultrasonogra phically.