Fig. 15. A. Eye with diabetic retinopathy. Neovascularization elsewhere elevated by vitreous traction, vitreous hemorrhage, and blood layered on the posterior retina. B. After removal of the vitreous and release of the anteroposterior traction on the neovascularization, the blood on the posterior retina is vacuumed up with an extrusion cannula. C. After vitrectomy releases the traction, the frond regresses.