Noncontact type tonometer
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United States of America Patent
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-
Jul 31, 1990
Grant Date -
N/A
app pub date -
Dec 24, 1987
filing date -
Dec 27, 1986
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A noncontact type tonometer, in which an axial line extending in the direction of air pulse projected by an air pulse projecting nozzle towards a cornea of an eye to be tested is coaxial with an optical axis of an alignment optical system for verifying an alignment with respect to a vertex of the cornea, includes an anterior portion observing system capable of optically observing an anterior portion of the eye and having an optical axis coaxial at least with a part of the optical axis of the alignment optical system.
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