Vitrectomy.
D003315:Cornea / Q000601:surgery; D003452:Cryosurgery; D003930:Diabetic Retinopathy / Q000601:surgery*; D006801:Humans; D007498:Iris / Q000601:surgery; D007908:Lens, Crystalline / Q000601:surgery; D008722:Methods; D012163:Retinal Detachment / Q000601:surgery; D012166:Retinal Hemorrhage / Q000601:surgery*; D014822:Vitreous Body / Q000601:surgery*