title: Ocular blood flow in dogs using radiolabelled microspheres.
abstract: We used radioactive microspheres of different sizes to determine the rate of blood flow through the various parts of the eye in dogs. The use of either 15 +/- 5 microns or 25 +/- 5 microns microspheres gave reproducible measurements of total ocular and uveal blood flows. Using these sphere sizes, retinal flow was found to be close to 1% of the total ocular blood flow and showed poor reproducibility due in part to the small number of spheres trapped in the retinal vessels.
authors.affiliation: Clinical Branch, National Eye Institute, Bethesda, Maryland.
authors.forename: M S
authors.initials: MS
authors.lastname: Roy
authors.forename: K S
authors.initials: KS
authors.lastname: Harrison
authors.forename: E
authors.initials: E
authors.lastname: Harvey
authors.forename: T
authors.initials: T
authors.lastname: Mitchell
mesh_terms: D000818:Animals; D002417:Cattle; D005123:Eye / Q000098:blood supply* / Q000000981:diagnostic imaging; D008297:Male; D008833:Microcirculation; D008863:Microspheres; D010316:Particle Size; D011877:Radionuclide Imaging; D012039:Regional Blood Flow; D014602:Uvea / Q000098:blood supply / Q000000981:diagnostic imaging