Optics: eye examining – vision testing and correcting – Eye examining or testing instrument – Objective type
Patent
1994-11-10
1996-06-04
Sikes, William L.
Optics: eye examining, vision testing and correcting
Eye examining or testing instrument
Objective type
351209, 125648, A61B 314
Patent
active
055238084
ABSTRACT:
A composite ophthalmic apparatus includes an intraocular pressure measuring system for spraying a fluid from a nozzle against an eye to be examined to deform its cornea and detecting a deformation amount of the cornea to measure the intraocular pressure of the eye, and another ophthalmic optical system. The apparatus is provided with a system for displacing the nozzle or the ophthalmic optical system relative to an eye to be examined so as to allow the center of the nozzle or the optical axis of the ophthalmic optical system to agree with the visual axis of the eye to be examined.
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Canon Kabushiki Kaisha
Dang Hung Xuan
Sikes William L.
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