Proceedings Article10.1117/12.764924
Methods of isoplanatic patch widening in human eye retina imaging
TL;DR: In this paper, the authors discuss possible ways to enlarge the size of high-resolution area (isoplanatic patch) in fundus imagers equipped with adaptive optics using immersion and multiconjugate methods.
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Abstract: We discuss possible ways to enlarge the size of high-resolution area (isoplanatic patch) in fundus imagers equipped
with adaptive optics. We first developed customized human eye models of several subjects. Then we considered
immersion and multiconjugate methods of isoplanatic patch widening. Using immersion method we obtained about twotimes
enlargement of isoplanatic patch size for the developed eye models. For optimal configuration of a multiconjugate
system with two correctors and five reference sources isoplanatic patch area increased two times if compared with the
case of conventional correction. We consider immersion method to be more preferable due to its relative simplicity and
low-cost.
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References
Supernormal vision and high-resolution retinal imaging through adaptive optics
TL;DR: A fundus camera equipped with adaptive optics is constructed that provides unprecedented resolution, allowing the imaging of microscopic structures the size of single cells in the living human retina.
Accommodation-dependent model of the human eye with aspherics
TL;DR: The average spherical aberration of the actual eye is predicted without any shape fitting by introducing recent experimental average measurements of cornea and lens into the Gullstrand-Le Grand model.
Compensation of corneal aberrations by the internal optics in the human eye.
TL;DR: The amount of aberration of both the cornea and internal optics was found to be larger than for the complete eye, indicating that the first surface of the corneal topography and the internal ocular optics partially compensate for each other's aberrations and produce an improved retinal image.
Shack-Hartmann wavefront sensor for laser beam analyses
Valentina Ye. Zavalova,Alexis Kudryashov +1 more
- 05 Feb 2002
TL;DR: Shack-Hartmann wave-front sensor (SHWS) as discussed by the authors was designed to measure both intensity distribution and phase distortion of optical fields in real time and high accuracy, which can be widely used not only in measuring, diagnostic, but also in adaptive optical systems to compensate for phase distortions.
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