APPARATUS FOR IMPROVING VISION AND RESOLUTION OF RETINAL IMAGES

摘要

An apparatus for improving vision and resolution of retinal images comprises a point source produced on the retina (101) of a living eye (100) by a laser beam (102). The laser beam reflected from the retina is received at a lenslet array of a Hartmann-Shack wavefront sensor (148) such that each of the lenslets forms an aerial image of the retinal point source on a CCD camera (146) located adjacent to the lenslet array. The output signal from the CCD camera is acquired by a computer (150) which processes the signal and produces a correction signal which may be used to control a compensating optical or wavefront compensation device such as a deformable mirror (118). It may also be used to fabricate a contact lens or intraocular lens, or to guide a surgical procedure to correct the aberrations of the eye. Any of these methods could correct aberrations beyond defocus and astigmatism, allowing improved vision and improved imaging of the inside of the eye.