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Science 29 November 1974:
Vol. 186. no. 4166, pp. 830 - 831
DOI: 10.1126/science.186.4166.830
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Articles

Blood Velocity Measurements in Human Retinal Vessels

Toyoichi Tanaka 1, Charles Riva 2, and Isaac Ben-Sira 2

1 Department of Physics and Center for Materials Science and Engineering, Massachusetts Institute of Technology. Cambridge 02139
2 Department of Retina Research. Retina Foundation, Boston, Massachusetts 02114

Laser Doppler velocimetry was used to measure the velocity of blood in human retinal vessels. The mean flow velocities obtained were 1.9 centimeters per second in a retinal vein and 2.2 centimeters per second in a retinal artery. Scattered light from a weak helium-neon laser beam focused on the vessel was detected by a photomultiplier, and the temporal correlation of the intensity fluctuations was measured with a photon counting autocorrelator. Autocorrelation functions for blood flowing through glass capillaries were used for calibration.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
In Vivo Imaging of Human Retinal Flow Dynamics by Color Doppler Optical Coherence Tomography.
S. Yazdanfar, A. M. Rollins, and J. A. Izatt (2003)
Arch Ophthalmol 121, 235-239
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The Effect on Skin Blood Flow of Short-Term Venous Hypertension in Normal Subjects.
T.R. Cheatle, S.J. Chittenden, P.D. Coleridge Smith, and J.H. Scurr (1991)
Angiology 42, 114-122
   Abstract »    PDF »
Laser-Doppler methods for the assessment of microcirculatory blood flow.
G.E. Nilsson, T. Tenland, and P. Ake Oberg (1982)
Transactions of the Institute of Measurement and Control 4, 109-112
   Abstract »    PDF »


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Science. ISSN 0036-8075 (print), 1095-9203 (online)