Visual field testing method, visual field testing device, and visual field testing program
AssigneeNikon Corporation
InventorsChikara Nakamura, Taishi Aoki, Teruo Horikawa, Hisao Osawa
Life of this patent
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Abstract
A visual field testing method is a visual field testing method of testing a visual field range divided into at least a first partial area and a second partial area, the method including: a step of measuring sensitivities of a plural first test points that are included in the first partial area; and a step of performing a process of estimating sensitivities of a plural second test points that are included in the first partial area and are test points other than the first test points, by using the sensitivities of the plural first test points.
Claims21
A visual field testing method, for testing a visual field sensitivity in a visual field range of an eye of a subject, the method comprising:
- a step of presenting indicator light of a plurality of different luminance values to each test point of a plurality of first test points in the visual field range;
- a step of obtaining a measured luminance value at each test point of the first test points by acquiring a recognition signal of the eye of the subject for the indicator light;
- a step of obtaining a calculated luminance value by calculating, from the measured luminance value of each test point of the plurality of first test points, a luminance value estimated to be recognized by the eye of the subject, at a second test point that is a test point other than the first test points;
- and
- a step of obtaining an estimated luminance value that is a luminance value estimated to be recognized by the eye of the subject at the second test point by obtaining an average value of the calculated luminance value calculated from each test point of the plurality of first test points,
- wherein the calculated luminance value is calculated using a Gaussian process.
A non-transitory recording medium storing a visual field testing program that is executable by a computer to perform processing, the processing comprising:
- a step of presenting, in a visual field range of an eye of a subject, indicator light of a plurality of different luminance values to each test point of a plurality of first test points in the visual field range;
- a step of obtaining a measured luminance value at each test point of the first test points by acquiring a recognition signal from the subject for the indicator light;
- a step of obtaining a calculated luminance value by calculating, from the measured luminance value of each test point of the plurality of first test points, a luminance value estimated to be recognized by the eye of the subject, at a second test point that is a test point other than the first test points;
- and
- a step of obtaining an estimated luminance value that is a luminance value estimated to be recognized by the eye of the subject, at the second test point by obtaining an average value of the calculated luminance value calculated from each test point of the plurality of first test points,
- wherein the calculated luminance value is calculated using a Gaussian process.
A visual field testing device comprising a processor configured to test a visual field sensitivity in a visual field range of an eye of a subject,
- the processor configured to perform:
- a step of presenting indicator light of a plurality of different luminance values to each test point of a plurality of first test points in the visual field range;
- a step of obtaining a measured luminance value at each test point of the first test points by acquiring a recognition signal from the subject for the indicator light;
- a step of obtaining a calculated luminance value by calculating, from the measured luminance value of each test point of the plurality of first test points, a luminance value estimated to be recognized by the eye of the subject, at a second test point that is a test point other than the first test points;
- and
- a step of obtaining an estimated luminance value that is a luminance value estimated to be recognized by the eye of the subject, at the second test point by obtaining an average value of the calculated luminance value calculated from each test point of the plurality of first test points,
- wherein the calculated luminance value is calculated using a Gaussian process.
Dependencies are inferred from the claim text.