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  2. Aberrations of the eye - Wikipedia

    en.wikipedia.org/wiki/Aberrations_of_the_eye

    Wavefront customized lenses can be used in eyeglasses. Based on Wavefront map of the eye and with the use of laser a lens is shaped to compensate for the aberrations of the eye and then put in the eyeglasses. Ultraviolet Laser can alter the refractive index of curtain lens materials such as epoxy polymer on a point by point basis in order to ...

  3. Shack–Hartmann wavefront sensor - Wikipedia

    en.wikipedia.org/wiki/Shack–Hartmann_wavefront...

    A Shack–Hartmann (or Hartmann–Shack) wavefront sensor (SHWFS) is an optical instrument used for characterizing an imaging system. [1][2] It is a wavefront sensor commonly used in adaptive optics systems. It consists of an array of lenses (called lenslets) of the same focal length. Each is focused onto a photon sensor (typically a CCD array ...

  4. Optical aberration - Wikipedia

    en.wikipedia.org/wiki/Optical_aberration

    Optical aberration. 1: Imaging by a lens with chromatic aberration. 2: A lens with less chromatic aberration. In optics, aberration is a property of optical systems, such as lenses, that causes light to be spread out over some region of space rather than focused to a point. [1]

  5. Adaptive optics - Wikipedia

    en.wikipedia.org/wiki/Adaptive_optics

    Adaptive and active optics are also being developed for use in glasses to achieve better than 20/20 vision, initially for military applications. [24] After propagation of a wavefront, parts of it may overlap leading to interference and preventing adaptive optics from correcting it. Propagation of a curved wavefront always leads to amplitude ...

  6. How Does Laser Eye Surgery Work? - AOL

    www.aol.com/lifestyle/does-laser-eye-surgery...

    Summary. Laser eye surgery is a type of surgery done to reshape the cornea and improve vision. An eye surgeon will conduct a series of tests before surgery to ensure your eyes are healthy before ...

  7. Wavefront - Wikipedia

    en.wikipedia.org/wiki/Wavefront

    A wavefront sensor is a device which measures the wavefront aberration in a coherent signal to describe the optical quality or lack thereof in an optical system. There are many applications that include adaptive optics , optical metrology and even the measurement of the aberrations in the eye itself.

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