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


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
StatePublished - 2010
Externally publishedYes
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
ISSN (Print)1605-7422


OtherOphthalmic Technologies XX
Country/TerritoryUnited States
CitySan Francisco, CA


  • 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


Dive into the research topics of 'Retinal oximetry with a multi-aperture camera'. Together they form a unique fingerprint.

Cite this