Ophthalmic measuring apparatus for determining the shape of the

Details Ophthalmic measuring apparatus for determining the shape of the Ophthalmic measuring apparatus for determining the shape of the

1994-06-01

1996-12-17

Sikes, William L.

Optics: eye examining, vision testing and correcting

Eye examining or testing instrument

Objective type

351210, 351221, 351247, A61B 310, A61B 314

Patent

active

055858724

ABSTRACT:
An ophthalmic measuring apparatus has an optical system for measurement, a light source unit for measurement, an image pickup element for picking up the cornea reflection image of the light source by an eye to be examined through the optical system for measurement, a signal processing unit for effecting cornea shape measurement from the image pickup data of the cornea reflection image obtained by the image pickup element, and a control unit for automatically causing the signal processing unit to execute measurement on the basis of the information of the position, on the image pickup element, of the cornea reflection image obtained by the image pickup element and/or the focusing information of the cornea reflection image.

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