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.

lab opstelling,

Experimental setup at the optical lab of Focal

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.

Fundus image acquired with the Corimapper (Wavelength band 1)

Fundus image acquired with the Corimapper (Wavelength band 1)

Fundus image acquired with the Corimapper (wavelength band 2)

Fundus image acquired with the Corimapper (wavelength band 2)

Composed Fundus image acquired with the Corimapper

Composed Fundus image acquired with the Corimapper