Spectroscopic measurements of oxygen saturation in the retina

Jessica C. Ramella-Roman, Scott A. Mathews

Research output: Contribution to journalArticlepeer-review

22 Scopus citations


We introduce a new type of retinal oximeter able to capture multiple spectroscopic sensitive images of the retina in a single snapshot. The core of our apparatus is a multiaperture camera that can be easily interfaced with a fundus camera system. A lenslet array divides the image collected by a fundus camera into identical subimages. A bandpass filter array in front of the lens system is used to collect the subimages only at the wavelengths of interest. Two different instruments were designed based on this simple principle. The first system can collect six different images, while the second system can collect up to 18 different images in a single snapshot.

Original languageEnglish (US)
Pages (from-to)1697-1703
Number of pages7
JournalIEEE Journal on Selected Topics in Quantum Electronics
Issue number6
StatePublished - Nov 2007
Externally publishedYes


  • Image registration
  • Optical spectroscopy

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Atomic and Molecular Physics, and Optics


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