The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 19, 2000
Filed:
Jun. 03, 1999
Applicant:
Inventors:
Assignee:
Kabushiki Kaisha TOPCON, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
A61B / ;
U.S. Cl.
CPC ...
600401 ; 351211 ;
Abstract
A noncontact tonometer comprises an air current blowing means for blowing an air current against an eye, a cornea deformation measuring means for optically measuring a change in the shape of the cornea caused by the air current blowing means, and an arithmetic means capable of calculating the intraocular tension of the eye on the basis of the change in the shape of the cornea. Since the intraocular tension of the eye can be calculated on the basis of the change in the shape of the cornea by the arithmetic means, the pressure of the air current blown against the eye need not be high, which lightens load on the subject.