Handheld four-wavelength retinal vessel oximeter

Larry Christopher Heaton; Matthew H. Smith; Kurt R. Denninghoff; Lloyd W. Hillman

doi:10.1117/12.387527

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7 June 2000 Handheld four-wavelength retinal vessel oximeter

Larry Christopher Heaton, Matthew H. Smith, Kurt R. Denninghoff, Lloyd W. Hillman

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Proceedings Volume 3908, Ophthalmic Technologies X; (2000) https://doi.org/10.1117/12.387527
Event: BiOS 2000 The International Symposium on Biomedical Optics, 2000, San Jose, CA, United States

Abstract

Several techniques for measuring the oxygen saturation of blood in retinal vessels have been reported. One interesting application of retinal vessel oximetry is the identification of occult blood loss in trauma victims. However, all the devices described to date are too bulky and cumbersome to be used in a trauma bay or in the field. We present a design for a handheld instrument that performs four-wavelength retinal vessel oximetry. This device is comparable in size and weight to a commercially available camcorder, and is suitable for use in the trauma bay. The compact size of this device could also extend its applications beyond traditional clinical settings, as it could be used by primary care physicians and home health care workers for the screening and monitoring of ophthalmic diseases. Principles of operation and preliminary data from the device will be described.

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Larry Christopher Heaton, Matthew H. Smith, Kurt R. Denninghoff, and Lloyd W. Hillman "Handheld four-wavelength retinal vessel oximeter", Proc. SPIE 3908, Ophthalmic Technologies X, (7 June 2000); https://doi.org/10.1117/12.387527

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