title: Removal of preretinal blood during vitrectomy.
abstract: To remove preretinal blood from the posterior pole, balanced salt solution is irrigated into the eye through a 21-gauge needle. The needle previously used for infusion is used as a port of exit. I have treated seven patients with this method without harmful effects.
mesh_terms: D001769:Blood; D006801:Humans; D009885:Ophthalmology / Q000379:methods*; D014822:Vitreous Body / Q000601:surgery*