Fig. 7 A. Preoperative appearance of thick epiretinal membrane in 10-year-old boy after trauma. B. Postoperative appearance after removal of epiretinal tissue. Vision improved from counting fingers to 20/100. (Margherio RR: Epiretinal macular membranes. In Albert R, Jakobiec EA, eds. Principles and Practice of Ophthalmology, Vol. 2. Philadelphia: WB Saunders, 1993:919–925)