Rativa D, Vohnsen B. Analysis of individual cone-photoreceptor directionality using scanning laser ophthalmoscopy.
BIOMEDICAL OPTICS EXPRESS 2011;
2:1423-31. [PMID:
21698006 PMCID:
PMC3114211 DOI:
10.1364/boe.2.001423]
[Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2011] [Revised: 04/21/2011] [Accepted: 04/27/2011] [Indexed: 05/21/2023]
Abstract
Scanning laser ophthalmoscopy has been used to measure individual cone-photoreceptor directionalities in the living human eye. The directionality is determined at different retinal eccentricities where it is expected that cones have diameters ranging between 5-10μm, comparable to the spot size of the incident beam. Individual cone directionality values are compared with the predicted directionalities obtained by using the waveguide model of light coupling to and from photoreceptors for the case of a focused incident beam.
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