March 2012
Volume 53, Issue 14
Free
ARVO Annual Meeting Abstract  |   March 2012
Retinal Vessel Oxygen Saturation In Healthy Individuals
Author Affiliations & Notes
  • Thorunn S. Eliasdottir
    Ophthalmology, University of Iceland / Landspitali University Hospital, Reykjavik, Iceland
  • Asbjorg Geirsdottir
    Ophthalmology, University of Iceland / Landspitali University Hospital, Reykjavik, Iceland
  • Olafur Palsson
    Ophthalmology, University of Iceland / Landspitali University Hospital, Reykjavik, Iceland
  • Sveinn H. Hardarson
    Ophthalmology, University of Iceland / Landspitali University Hospital, Reykjavik, Iceland
    Oxymap ehf., Reykjavik, Iceland
  • Olof B. Olafsdottir
    Ophthalmology, University of Iceland / Landspitali University Hospital, Reykjavik, Iceland
  • Jona V. Kristjansdottir
    Ophthalmology, University of Iceland / Landspitali University Hospital, Reykjavik, Iceland
    Oxymap ehf., Reykjavik, Iceland
  • Einar Stefánsson
    Ophthalmology, University of Iceland / Landspitali University Hospital, Reykjavik, Iceland
  • Footnotes
    Commercial Relationships  Thorunn S. Eliasdottir, None; Asbjorg Geirsdottir, None; Olafur Palsson, None; Sveinn H. Hardarson, Oxymap ehf. (I, P); Olof B. Olafsdottir, None; Jona V. Kristjansdottir, Oxymap ehf. (E); Einar Stefánsson, Oxymap ehf. (I, P, S)
  • Footnotes
    Support  Icelandic Center for Research (Rannís), University of Iceland Research Fund and Landspitali-University Hospital Research Fund.
Investigative Ophthalmology & Visual Science March 2012, Vol.53, 2172. doi:https://doi.org/
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      Thorunn S. Eliasdottir, Asbjorg Geirsdottir, Olafur Palsson, Sveinn H. Hardarson, Olof B. Olafsdottir, Jona V. Kristjansdottir, Einar Stefánsson; Retinal Vessel Oxygen Saturation In Healthy Individuals. Invest. Ophthalmol. Vis. Sci. 2012;53(14):2172. doi: https://doi.org/.

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      © ARVO (1962-2015); The Authors (2016-present)

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Abstract
 
Purpose:
 

To determine the effects of age and gender on oxygen saturation in retinal vessels of healthy eyes.

 
Methods:
 

The non-invasive retinal oximeter is based on a fundus camera (Oxymap ehf., Reykjavik Iceland). It simultaneously captures images of the retina at 600 and 570nm and estimates retinal vessel oxygen saturation. Mean oxygen saturation of hemoglobin was measured in retinal arterioles and venules of 111 healthy individuals, aged 19 - 75 years. Of the 111 participants, 42 (38%) were males (49±15 years, mean±SD) and 69 (62%) females (43±15 years).

 
Results:
 

The figure illustrates the relationship between retinal vessel oxygen saturation for males and females. The combined mean arteriolar oxygen saturation for both groups is 93.1±3.4% and 55.6±5.7 in venules.

 
Conclusions:
 

Venular oxygen saturation decreases by approximately 1.5% for every ten years of age in males and 0.8% in females. There is no change in arteriolar oxygen saturation with age. The study provides normative data for retinal oximetry.  

 
Keywords: oxygen • retina • imaging/image analysis: clinical 
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