Wide-field, illumination-agile, oximetric retinal imaging with a handheld camera

Abstract

We report the first oximetric wide-field retinal imaging using a hand-held ophthalmoscope. Computational agile illumination yields a field of view of 80 ◦ and spectral oximetric arterio-venous classification.

Trans-scleral Illumination - The Future of Retinal Imaging?

“…Oximetry of retinal vascular blood exploits oximetric variations in contrast of narrowband spectral images [6,7]. Even low-levels of glare from the cornea and lens significantly reduces the contrast, however [8]. We have demonstrated two-wavelength in vivo retinal vascular oximetry in rats using scleral illumination, as highlighted in Fig.…”