Method and apparatus for measuring optical aberrations of an...

Details Method and apparatus for measuring optical aberrations of an... Method and apparatus for measuring optical aberrations of an...

A - Human Necessities

61

B

A61B 3/10 (2006.01) A61B 3/103 (2006.01) A61B 3/15 (2006.01)

Patent

CA 2404061

Embodiments of the present invention provide a method and apparatus for measurement of aberration of an eye. One or more embodiments provide an aberration measurement instrument that enables measurement wherein Hartmann-Shack spots have reduced speckle; one or more embodiments provide an aberration measurement instrument that enables measurement of an eye having a large diopter power variation over different zones of the eye; one or more embodiments provide an aberration measurement instrument that enables measurement with accommodation control; one or more embodiment provide an aberration measurement instrument wherein radiation reflected by a cornea and radiation scattered by infra-ocular elements are blocked; and one or more embodiment provide an aberration measurement instrument wherein a hazy background produced by radiation multiply scattered within an eye is reduced.

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