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Applied Optics

Applied Optics


  • Vol. 44, Iss. 7 — Mar. 1, 2005
  • pp: 1191–1199

Double lateral shearing interferometer for the quantitative measurement of tear film topography

Alfredo Dubra, Carl Paterson, and Christopher Dainty  »View Author Affiliations

Applied Optics, Vol. 44, Issue 7, pp. 1191-1199 (2005)

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A lateral shearing interferometer designed and built for the study of the precorneal tear film topography dynamics and its effect on visual performance is presented. Simple data processing algorithms are discussed and tested on data illustrating different tear topography features: postblink tear undulation, tear breakup, eyelid-produced bumps and ridges, bubbles, and rough precontact lens tear surfaces.

© 2005 Optical Society of America

OCIS Codes
(010.1080) Atmospheric and oceanic optics : Active or adaptive optics
(170.3890) Medical optics and biotechnology : Medical optics instrumentation
(170.4580) Medical optics and biotechnology : Optical diagnostics for medicine
(330.4300) Vision, color, and visual optics : Vision system - noninvasive assessment
(330.4460) Vision, color, and visual optics : Ophthalmic optics and devices
(330.5370) Vision, color, and visual optics : Physiological optics

Original Manuscript: July 19, 2004
Revised Manuscript: November 3, 2004
Manuscript Accepted: November 4, 2004
Published: March 1, 2005

Alfredo Dubra, Carl Paterson, and Christopher Dainty, "Double lateral shearing interferometer for the quantitative measurement of tear film topography," Appl. Opt. 44, 1191-1199 (2005)

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