Method and device for measuring the optical power of the cornea

Details Method and device for measuring the optical power of the cornea Method and device for measuring the optical power of the cornea

1981-10-30

1984-04-03

Corbin, John K.

Optics: eye examining, vision testing and correcting

Eye examining or testing instrument

Objective type

351206, A61B 310, A61B 314

Patent

active

044404778

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.

REFERENCES:
patent: 4159867 (1979-07-01), Achatz

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