Confocal retinal imaging using a digital light projector with a near infrared VCSEL source

Matthew S. Muller; Ann E. Elsner

doi:10.1117/12.2290286

22 February 2018 Confocal retinal imaging using a digital light projector with a near infrared VCSEL source

Matthew S. Muller, Ann E. Elsner

Proceedings Volume 10546, Emerging Digital Micromirror Device Based Systems and Applications X; 105460G (2018) https://doi.org/10.1117/12.2290286
Event: SPIE OPTO, 2018, San Francisco, California, United States

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.

Citation Download Citation

Matthew S. Muller and Ann E. Elsner "Confocal retinal imaging using a digital light projector with a near infrared VCSEL source", Proc. SPIE 10546, Emerging Digital Micromirror Device Based Systems and Applications X, 105460G (22 February 2018); https://doi.org/10.1117/12.2290286

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