Device and method for measuring the curvature of the cornea

Details Device and method for measuring the curvature of the cornea Device and method for measuring the curvature of the cornea

1977-09-09

1979-07-03

Sacher, Paul A.

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

Folding

351 39, 351 13, A61B 310, A61B 300

Patent

active

041598679

ABSTRACT:
A device and method are disclosed for measuring the curvature of the cornea of the human eye. The device utilizes a continuous, curved surface plate positioned in front of the eye and having a telescope extending through the surface plate such that its optical axis is aligned with the eye. Several object points are generated on the surface plate within the field of vision of the eye and are formed also on the image plane of the eye. Detection devices, located within the telescope measure the positions of such image points in relation to the optical axis. The radius of curvature of the cornea can be determined from this measurement.

REFERENCES:
patent: 3542458 (1970-11-01), Volk

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