Apparatus and method for the kinetic analysis of tear stability

Details Apparatus and method for the kinetic analysis of tear stability Apparatus and method for the kinetic analysis of tear stability

2006-10-17

2006-10-17

Casler, Brian L. (Department: 3737)

Optics: eye examining, vision testing and correcting

Eye examining or testing instrument

Objective type

Reexamination Certificate

active

07121666

ABSTRACT:
An apparatus and method for the kinetic analysis of tear interference is disclosed. The apparatus includes a light source for illuminating a tear film of a cornea, an optical train for modifying the light before it reaches the cornea and after it is the carrier of an image from the cornea, an image recorder to record a series of images of the illuminated tear film, and an image output for providing the series of images to a display; the series of images illustrating a tear film dispersion pattern indicative of a tear stability condition. The method includes the steps of illuminating the film on a cornea of said eye with light, recording a series of images of the illuminated film, and outputting the series of images to a display. The series of images illustrating at least one of a lipid film spread and a tear film dispersion pattern indicative of a tear stability condition.

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Goto, E. and Tseng, SCG, “Kinetic Analysis of Tear Interference Images in Aqueous Tear Deficiency Dry Eye Before and After Punctal Occlusion,”Invest. Ophthal, 44 (5): 1897-1905 (May 2003).
Goto, E. and Tseng, SCG, “Differentiation of Lipid Tear Deficiency Dry Eye by Kinetic Analysis of Tear Interference Images,”Arch Ophthalmol, 121: 173-180 (Feb. 2003).

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