Patent ID: 9179841
Filing Date: 2015-11-10
Classification: A61B

Abstract:
1. A method of retinal imaging utilizing digital holography with adaptive optics capability but without a wavefront sensor or wavefront corrector, the method comprising: providing a narrow laser beam entering an eye through the cornea and lens, forming a focused spot on the retina, wherein the narrow laser beam is narrow enough such that an aberration in the cornea and/or the lens across the narrow laser beam is negligible; capturing, by digital holography, and numerically storing a narrow beam holographic wavefront profile of the emergent beam resulting from the narrow laser beam; providing a full-field illumination to the retina; capturing, by digital holography, and numerically storing a full-field illuminated holographic wavefront profile of the emergent light resulting from the full-field illumination; and numerically subtracting and processing the narrow beam holographic wavefront profile and the full-field illuminated holographic wavefront profile to obtain an aberration-compensated image of the retina.