Adaptive optics scanning laser ophthalmoscopy with two sources

Abstract

Adaptive confocal laser ophthalmoscope with the high-resolution and dynamic imaging ability has been widely applied in specific biomedical and clinical medical fields. In order to apply the noncircular pupil filter and other pupil modulation technology without influence in wavefront detection, the system needs two light sources for imaging and aberration correction respectively. This paper has designed an adaptive optics scanning laser ophthalmoscopy with two sources, and then analyzed the differences of the aberration of the two light sources. Then, the aberration correction and high-resolution imaging ability of the system have been verified, and the brightness, contrast and resolution of the image have been significantly improved after close-loop. Finally, we have studied the feasibility of realizing the dark field imaging by semi-circular pupil and obtained the bright and dark field images of the artificial eye.