Retinal oximetry with a multi-aperture camera

Paul Lemaillet, Art Lompado, Mohamed Ibrahim, Quan Dong Nguyen, Jessica C. Ramella-Roman

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Oxygen saturation measurements in the retina is an essential measurement in monitoring eye health of diabetic patient. In this paper, preliminary result of oxygen saturation measurements for a healthy patient retina is presented. The retinal oximeter used is based on a regular fundus camera to which was added an optimized optical train designed to perform aperture division whereas a filter array help select the requested wavelengths. Hence, nine equivalent wavelength-dependent sub-images are taken in a snapshot which helps minimizing the effects of eye movements. The setup is calibrated by using a set of reflectance calibration phantoms and a lookup-table (LUT) is computed. An inverse model based on the LUT is presented to extract the optical properties of a patient fundus and further estimate the oxygen saturation in a retina vessel.

Original languageEnglish (US)
Title of host publicationOphthalmic Technologies XX
DOIs
StatePublished - Dec 1 2010
EventOphthalmic Technologies XX - San Francisco, CA, United States
Duration: Jan 23 2010Jan 25 2010

Publication series

NameProgress in Biomedical Optics and Imaging - Proceedings of SPIE
Volume7550
ISSN (Print)1605-7422

Other

OtherOphthalmic Technologies XX
CountryUnited States
CitySan Francisco, CA
Period1/23/101/25/10

Keywords

  • Fundus ophthalmoscope
  • Multi-aperture camera
  • Retinal oximetry

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Biomaterials
  • Atomic and Molecular Physics, and Optics
  • Radiology Nuclear Medicine and imaging

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  • Cite this

    Lemaillet, P., Lompado, A., Ibrahim, M., Nguyen, Q. D., & Ramella-Roman, J. C. (2010). Retinal oximetry with a multi-aperture camera. In Ophthalmic Technologies XX [755021] (Progress in Biomedical Optics and Imaging - Proceedings of SPIE; Vol. 7550). https://doi.org/10.1117/12.841980