Non-contact tonometer, control method of the same, and program
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United States of America Patent
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May 3, 2016
Grant Date -
Oct 23, 2014
app pub date -
Apr 7, 2014
filing date -
Apr 17, 2013
priority date (Note) -
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status (Latency Note)
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Abstract
An excessive amount of pressurized air is inhibited from being blown to an eye of a patient during measurement of a corneal shape deformation amount. In a non-contact tonometer having a piston, a driving unit to drive the piston, a fluid ejection unit to blow air pressurized by driving the piston toward a cornea of an eye to be inspected, and an intraocular pressure measuring unit to detect a deformed state of the cornea and measure an intraocular pressure, there are provided a piston displacement restricting unit that restricts a displacement amount when the piston pressurizes the air, and a changing unit to change the displacement amount to be restricted by the piston displacement restricting unit.
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