Abstract
A high-speed, adaptive optics partially confocal multi-spot ophthalmoscope (AO-pcMSO) using a digital micromirror device (DMD) in the illumination channel and a fast 2D CMOS camera is described. The camera is synchronized with the DMD allowing projection of multiple, simultaneous AO-corrected spots onto the human retina. Spatial filtering on each raw retinal image before reconstruction works as an array virtual pinholes. A frame acquisition rate of 250 fps is achieved by applying this parallel projection scheme. The contrast improves by 2–3 fold when compared to a standard flood illumination architecture. Partially confocal images of the human retina show cone and rod photoreceptors over a range of retinal eccentricities.
© 2023 Optica Publishing Group
Full Article | PDF ArticleMore Like This
Danielis Rutkauskas and Egidijus Auksorius
Opt. Lett. 49(3) 686-689 (2024)
Soohyun Lee, Stacey S. Choi, Ratheesh K. Meleppat, Robert J. Zawadzki, and Nathan Doble
Biomed. Opt. Express 15(3) 1815-1830 (2024)
Léa Krafft, Pierre Senée, Elena Gofas, Olivier Thouvenin, Michael Atlan, Michel Paques, Serge Meimon, and Pedro Mecê
Opt. Lett. 48(14) 3785-3788 (2023)