Because the retinal fold could lead to a total RD and phthisis bulbi, lens-sparing vitrectomy,5 ie, vitrectomy without removal of the crystalline lens, was performed. After conjunctival peritomy, a 3-port vitrectomy commonly used for retinopathy of prematurity in our institute6 was performed. Three sclerotomy sites were made 1 mm from the limbus with a 23-gauge microvitreoretinal blade, and a 23-gauge vitreous cutter, a light pipe (Alcon Laboratories, Inc, Fort Worth, Texas), and a self-retaining 23-gauge infusion tube (Dutch Ophthalmic Research Center International, Zuidland, the Netherlands) with the inner port length of 3 mm were used. The vitreoretinal traction between the FVPs and the peripheral retina and ciliary body was removed. Because the temporal peripheral avascular retina had laser burns, it could be distinguished from the overlying vitreous or FVPs. The posterior hyaloid was then separated from the posterior retina up to the border of the vascular and avascular retina. The dissection of the FVPs that had dragged the retina was performed mainly in a radial direction with 23-gauge scissors (Dutch Ophthalmic Research Center International) to release the circumferential traction. Extensive membrane dissection and delamination were not performed to avoid creating iatrogenic retinal tears. Finally, the avascular retina was ablated with a 532-nm laser.