Focal and DEMCON developed a prototype retinal oximeter with a hand held functionality. The Corimapper simultaneously images the fundus with two well defined wavelength bands. The light absorbance is used to estimate the vessel oxygenation saturation. A NIR led light source is used to align the camera with the retina and Xe flash light source is used to generate a short light pulse of few milliseconds. We are very proud that we managed to make handheld oximetry images allowing the Corimapper to be used for a clinical study on premature born babies at the LUMC. The camera can be used either in the handheld mode or on the standard chin-rest setup.
The first results of non-dilated eyes look very promising. The Corimapper is currently being prepared to be submitted to the METC. Some results of the images are shown below.