title: Surrogates for ocular perfusion pressure are not perfect--authors reply.
authors.affiliation: Department of Ophthalmology, University of Campinas, Campinas, Brazil.
authors.forename: Vital P
authors.initials: VP
authors.lastname: Costa
authors.forename: Douglas
authors.initials: D
authors.lastname: Anderson
authors.forename: Alon
authors.initials: A
authors.lastname: Harris
mesh_terms: D001794:Blood Pressure / Q000502:physiology*; D005902:Glaucoma, Open-Angle / Q000503:physiopathology*; D006801:Humans; D007429:Intraocular Pressure / Q000502:physiology*; D012161:Retinal Artery / Q000502:physiology*; D012169:Retinal Vein / Q000502:physiology*