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:
Jan. 09, 2024
Filed:
Mar. 06, 2019
Crewt Medical Systems, Inc., Tokyo, JP;
CREWT MEDICAL SYSTEMS, INC., Tokyo, JP;
Abstract
A visual field test device includes: first probability density function acquisition unit performs step (1) of obtaining a probability density function f(x1) for a result value x1 obtained in a first visual field test; a stimulation threshold determination unit performs step (2) of setting a stimulation threshold t1 to a value in the range of x1 in the f(x1); a test result acquisition unit performs step (3) of obtaining test results indicating if a result greater than or equal to t1 was obtained in the first visual field test; a second probability density function acquisition unit performs step (4) of obtaining a probability density function f(x2) by removing probability density values that's greater than or equal to t1, or removing values that are less than t1 from f(x1); and a determination unit performs step (5) of determining if a standard deviation σ of the f(x2) is below a predetermined value.