| Literature DB >> 29899586 |
Matthew S Muller1, Ann E Elsner1,2.
Abstract
A custom near infrared VCSEL source has been implemented in a confocal non-mydriatic retinal camera, the Digital Light Ophthalmoscope (DLO). The use of near infrared light improves patient comfort, avoids pupil constriction, penetrates the deeper retina, and does not mask visual stimuli. The DLO performs confocal imaging by synchronizing a sequence of lines displayed with a digital micromirror device to the rolling shutter exposure of a 2D CMOS camera. Real-time software adjustments enable multiply scattered light imaging, which rapidly and cost-effectively emphasizes drusen and other scattering disruptions in the deeper retina. A separate 5.1″ LCD display provides customizable visible stimuli for vision experiments with simultaneous near infrared imaging.Entities:
Keywords: Aeon Imaging; CMOS; DLP; VCSEL; confocal; multiply scattered light; retina; rolling shutter
Year: 2018 PMID： 29899586 PMCID： PMC5995569 DOI： 10.1117/12.2290286
Source DB: PubMed Journal: Proc SPIE Int Soc Opt Eng ISSN： 0277-786X