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The Choroidal Eye Oximeter - An instrument for measuring oxygen saturation of choroidal blood in vivoThe Choroidal Eye Oximeter is an electro-optical instrument that noninvasively measures the oxygen saturation of choroidal blood in the back of the human eye by a spectrophotometric method. Since choroidal blood is characteristic of blood which is supplied to the brain, the Choroidal Eye Oximeter can be used to monitor the amount of oxygen which is supplied to the brain under varying external conditions. The instrument consists of two basic systems: the optical system and the electronic system. The optical system produces a suitable bi-chromatic beam of light, reflects this beam from the fundus of the subject's eye, and onto a low-noise photodetector. The electronic system amplifies the weak composite signal from the photodetector, computes the average oxygen saturation from the area of the fundus that was sampled, and displays the value of the computed oxygen saturation on a panel meter.
Document ID
19750044925
Document Type
Reprint (Version printed in journal)
Authors
Laing, R. A.
Danisch, L. A. (Boston University Boston, Mass., United States)
Young, L. R. (MIT Cambridge, Mass., United States)
Date Acquired
August 8, 2013
Publication Date
May 1, 1975
Publication Information
Publication: IEEE Transactions on Biomedical Engineering
Volume: BME-22
Subject Category
MAN/SYSTEM TECHNOLOGY AND LIFE SUPPORT
Funding Number(s)
CONTRACT_GRANT: NAS12-2018
Distribution Limits
Public
Copyright
Other