title: Cataract diagnosis by measurement of backscattered light.
abstract: We present a portable optical cataract assessment technology which measures with a circular photodetector the fraction of light scattered backwards by the human eye lens when illuminated by a laser diode. As our signal arises directly from the fundamental pathology-increased scattering in the lens-it directly assesses cataract extent and progression. Initial clinical results in undilated human eyes show device reading correlations in agreement with clinical examination and Scheimpflug photography.
authors.affiliation: Institute of Physics, Riia 142, University of Tartu, 51014 Tartu, Estonia. etkaczyk@umich.edu
authors.forename: Eric R
authors.initials: ER
authors.lastname: Tkaczyk
authors.forename: Tiina
authors.initials: T
authors.lastname: Mauring
authors.forename: Mihkel
authors.initials: M
authors.lastname: Pajusalu
authors.forename: Agu
authors.initials: A
authors.lastname: Anijalg
authors.forename: Alan H
authors.initials: AH
authors.lastname: Tkaczyk
authors.forename: Pait
authors.initials: P
authors.lastname: Teesalu
authors.forename: Jaak
authors.initials: J
authors.lastname: Kikas
authors.forename: Koit
authors.initials: K
authors.lastname: Mauring
mesh_terms: D002386:Cataract / Q000175:diagnosis*; D003941:Diagnostic Techniques, Ophthalmological / Q000295:instrumentation*; D004867:Equipment Design; D006801:Humans; D054023:Lasers, Semiconductor; D008027:Light; D055096:Optical Devices; D055620:Optical Phenomena; D012542:Scattering, Radiation