Patent ID: 11883102
Assignee: JVCKENWOOD CORPORATION
Field: Medical technology (Instruments)
Classification: CPC A  G | IPC A  G

Claim 1:
2. A vision function detection apparatus comprising:
a display controller configured to cause an image for determination to be displayed in a display region on a display screen of a display unit, and move the image for determination within the display region;
a detector configured to detect movement of an eyeball of a test subject observing the display screen;
a relation detector configured to detect relation information between movement of the eyeball in a first direction along a moving direction of the image for determination and movement of the eyeball in a second direction orthogonal to the first direction; and
a visual function detector configured to detect a visual function of the test subject based on the relation information, wherein
the visual function detector is configured to detect the visual function of the test subject based on:
a first difference between a first total moved distance of the eyeball in the first direction along the moving direction of the image for determination and a second total moved distance of the eyeball in the second direction orthogonal to the first direction; or
a second difference between a first number of times a moving direction of the eyeball is reversed with respect to the first direction along the moving direction of the image for determination and a second number of times the moving direction of the eyeball is reversed with respect to the second direction orthogonal to the first direction.