Perimeter
AssigneeNidek Co., Ltd.
InventorToshifumi Sumiya
Life of this patent
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Abstract
A perimeter for examining a visual field condition of an examinee's eye, includes: a target presenting unit a response unit brain activity detecting unit which detects an activity condition of a visual cortex of the examinee; and an operation unit which determines if the response with the response unit with respect to presentation of the target is resulted from a fact that the examinee can perceive the target based on a detection result of the brain activity detecting unit and which obtains the visual field condition on the basis of the presentation condition of the target and the response result in consideration of the determination result of the brain activity detecting unit.
Claims5
A perimeter for examining visual field condition of an examinee's eye, the perimeter comprising:
- a target presenting unit which presents a stimulation target for examination to the examinee's eye, a presentation condition of the target including a presentation position of the target being variable;
- a response unit with which the examinee responds when the examinee can perceive the presented target;
- a brain activity detecting unit which detects activity condition of a visual cortex of the examinee;
- and
- an operation unit which determines whether or not the response with the response unit with respect to presentation of the target is resulted from a fact that the examinee can perceive the target based on a detection result of the brain activity detecting unit and which obtains the visual field condition of the examinee's eye based on the presentation condition of the target and the response result with the response unit in consideration of the determination result.
Dependencies are inferred from the claim text.