Method and device for measuring the optical power of the cornea
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United States of America Patent
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Apr 3, 1984
Grant Date -
N/A
app pub date -
Oct 30, 1981
filing date -
Oct 30, 1981
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method and device for measuring the optical power of the cornea is provided. The device comprises a light source to illuminate the cornea, apparatus for forming a profile image of the cornea, apparatus for measuring the actual image distance from the anterior corneal surface, processing apparatus for calculating the radius of curvature and dioptric power of the cornea and display apparatus for displaying the calculated data. The method of the present invention comprises illuminating the cornea with a light source, forming a profile image of the cornea, measuring the actual image distance from the anterior corneal surface and calculating the anterior radius of curvature and dioptric power of the cornea.
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