A diffuser-based computational imaging funduscope

Li Y, McKay GN, Durr NJ*, Tian L*
Optics Express, 28:13 2020

[Journal Link] [preprint]

Abstract

Poor access to eye care is a major global challenge that could be ameliorated by low-cost and portable ocular diagnostic technologies. Diffuser-based imaging enables inexpensive, compact optical systems that could naturally be applied to this need. Here, we present a diffuser-based funduscope capable of reconstructing important clinical features of a model eye. We demonstrate funduscopic image reconstruction over a 33° field of view, and robustness to ±4D refractive error using a constant point-spread-function. Combined with diffuser-based wavefront sensing, this technology could enable combined ocular aberrometry and funduscopic screening through a single, low-cost diffuser sensor.