Adaptive optics for vision science: principles, practices, by Jason Porter, Hope Queener, Julianna Lin, Karen Thorn, Abdul

By Jason Porter, Hope Queener, Julianna Lin, Karen Thorn, Abdul A. S. Awwal

Prime specialists current the most recent know-how and functions in adaptive optics for imaginative and prescient science

that includes contributions from the key researchers within the box, Adaptive Optics for imaginative and prescient technological know-how is the 1st booklet dedicated totally to delivering the basics of adaptive optics in addition to its useful purposes in imaginative and prescient technology. the cloth for this booklet stems from collaborations fostered by way of the heart for Adaptive Optics, a consortium of greater than thirty universities, govt laboratories, and corporations.

even if the publication is written essentially for researchers in imaginative and prescient technological know-how and ophthalmology, the sphere of adaptive optics has robust roots in astronomy. Researchers in either fields percentage this know-how and, as a result, the ebook contains chapters by way of either astronomers and imaginative and prescient scientists.

Following the advent, chapters are divided into the next sections:
* Wavefront size and Correction
* Retinal Imaging Applications
* imaginative and prescient Correction Applications
* layout Examples

Readers will realize the impressive proliferation of recent purposes of wavefront-related applied sciences built for the human eye. for instance, the publication explores how wavefront sensors provide the promise of a brand new iteration of imaginative and prescient correction equipment which could care for greater order aberrations past defocus and astigmatism, and the way adaptive optics can produce pictures of the dwelling retina with extraordinary resolution.

An appendix contains the Optical Society of America's criteria for Reporting Optical Aberrations. A thesaurus of phrases and an emblem desk also are included.

Adaptive Optics for imaginative and prescient technology palms engineers, scientists, clinicians, and scholars with the fundamental suggestions, engineering instruments, and methods had to grasp adaptive optics purposes in imaginative and prescient technology and ophthalmology. additionally, readers will observe the most recent pondering and findings from the best innovators within the box.

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Extra resources for Adaptive optics for vision science: principles, practices, design, and applications

Example text

The combination of adaptive optics with optical coherence tomography (AO-OCT) may eventually provide even better axial resolution, as small as ~2 mm. A number of groups are actively pursuing this direction (see also Chapter 17) [77–79]. AOOCT could produce a point spread function of less than 2 mm in all three spatial dimensions, which would be smaller than the cell bodies of the smallest retinal cells. Though the diffraction limit on resolution set by the relatively low numerical aperture of the eye is a formidable barrier, it may eventually be possible to surpass it using techniques such as structured illumination [80, 81], which has successfully exceeded the diffraction limit in microscopy.

Changes in the wave aberration with accommodation reduce the visual benefit to some extent [42]. In addition, there is the possibility that the reduction in the depth of field caused by correcting higher order aberrations could actually decrease visual performance in some circumstances. Finally, the visual benefit is only as good as the technology available to correct the wave aberration, and factors such as errors in the alignment of the excimer laser with the eye and biomechanical changes in the eye following surgery reduce the accuracy of higher order correction.

Opt. Lett. 1989; 14: 1098–1100. 24. Marcos S, Navarro R. Determination of the Foveal Cone Spacing by Ocular Speckle Interferometry: Limiting Factors and Acuity Predictions. J. Opt. Soc. Am. A. 1997; 14: 731–740. 25. Miller DT, Williams DR, Morris GM, Liang J. Images of Cone Photoreceptors in the Living Human Eye. Vision Res. 1996; 36: 1067–1079. 26. Smirnov MS. Measurement of the Wave Aberration of the Human Eye. Biophysics. 1961; 6: 687–703. 27. Howland HC. Ophthalmic Wavefront Sensing: History and Methods.

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