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Full-eye illumination ocular surface imaging of an ocular tear film for determining tear film thickness and/or providing ocular topography

  • US 10,582,849 B2
  • Filed: 01/18/2019
  • Issued: 03/10/2020
  • Est. Priority Date: 12/21/2012
  • Status: Active Grant
First Claim
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1. A method of imaging an eye, comprising:

  • modulating light from a multi-wavelength light source to project the light onto the eye;

    receiving at an imaging device, at least one first image comprising at least one first signal associated with an ocular property of the eye comprising a first pattern of optical wave interference of specularly reflected light and at least one background signal from at least one first portion of an ocular tear film of the eye, and a second pattern of optical wave interference of specularly reflected light and the at least one background signal from at least one second portion of the ocular tear film different from the at least one first portion;

    modulating light from the multi-wavelength light source to project a second light onto the eye; and

    receiving at the imaging device, at least one second image containing at least one second signal associated with the ocular property of the eye comprising optical wave interference of specularly reflected second light including at least one second background signal reflected from the at least one second portion of the eye different from the at least one first portion of the eye.

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