Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Imaging correlography applied to high resolution retinal imaging

Not Accessible

Your library or personal account may give you access

Abstract

The resolution of the images obtained from the eye fundus are limited by the ocular aberrations. As most of the aberrations are due to the eye optics, they do not affect the light intensity measured in the eye iris plane. By illuminating the retina with a laser and collecting the light in a pupil plane conjugate, it is possible to apply the imaging correlography technique. From processing series of pupil plane images, this technique gives information about the retina in the form of the squared modulus of the Fourier transform or, equivalently, the autocorrelation of the diffraction-limited image intensity. Two factors make this technique suitable for retinal imaging: 1) For this technique to work, changes of phase distribution in the retinal plane are necessary between each frame. Small eye movements naturally provide these changes; 2) This method does not provide directly the phase of the Fourier transform. Therefore it is of most use for centro-symmetric objects like the retina’s photoreceptor mosaic. Preliminary data have been obtained in vivo showing the feasibility of applying such a technique in the eye. Experimental results are compared against simulation based on retinal scattering model.

© 2007 SPIE

PDF Article
More Like This
Adaptive Optics High Resolution Retinal Imaging

Donald T. Miller
FMG2 Frontiers in Optics (FiO) 2006

Pushing the limits of high-resolution retinal imaging

Jennifer J Hunter
BMA4 Bio-Optics: Design and Application (BODA) 2011

Experiments of high resolution retinal imaging with adaptive optics

Ning Ling, Yudong Zhang, Xuejun Rao, Chen Wang, Yiyun Hu, Wenhan Jiang, and Chunhui Jiang
FThV4 Frontiers in Optics (FiO) 2004

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved