Abstract
Purpose: :
To develop and test a system for retinal oximetry based on scanning laser ophthalmoscopy (SLO).
Results: :
The system successfully produced pseudocolor images showing oxygen saturation in retinal arterioles and venules (figure). In one eye mean retinal arteriolar oxygen saturation was 95% and the mean venular oxygen saturation was 66%. In another individual mean arteriolar oxygen saturation was measured 107% and the venular mean was 55%.
Conclusions: :
It is technically possible to derive information on retinal vessel oxygen saturation from a scanning laser ophthalmoscope with two wavelength oximetry algorithm. Preliminary results are promising and suggest that scanning laser ophthalmoscopy may be used for retinal oximetry.
Keywords: oxygen • development • image processing