NSTI Nanotech 2009

Safer retinal disorder diagnosis with a handheld camera with direct digital output

M. Hoelling
ETH Zurich - ETH transfer, CH

Keywords: Ophthalmoscopy, retinal and intraocular observations, diagnosis, retinal diseases, transscleral illumination, handheld devices, fundus camera

Abstract:

Common ophthalmoscopes use a cascade of ophthalmic lenses to create human retina images. We use a single aspheric lens that creates a flat aerial image. The flat image is directly captured with an image sensor enabling a significant miniaturization of the ophthalmoscopic device and direct digital output.
 
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