METHOD FOR ASSESSING SPECTACLE LENS BY EVOKED ACTIVITY IN VISUAL CORTEX OF BRAIN OR THE LIKE, AND METHOD FOR DESIGNING SPECTACLE LENS USING SAID METHOD FOR ASSESSMENT

摘要

[Problem] To provide an evaluation method for evaluating spectacle lenses that is capable of objectively evaluating spectacle lenses suitable for a user by measuring brain activity, and a design method for designing spectacle lenses using the evaluation method.;[Solution] A subject is allowed to wear to-be-evaluated lenses, and the subject is allowed to visually observe a visual stimulus object used to evoke an activity of a specific part of the visual cortex of the brain through the to-be-evaluated lenses, and an evoked activity of the specific part of the brain's visual cortex when the visual stimulus object is visually observed by the to-be-evaluated lenses is measured by an electroencephalograph or by a magnetoencephalograph, and the spectacle lenses are evaluated based on time (latency) from when a visual stimulus is received till when a change is caused thereby or based on the magnitude (amplitude) of activity.

主权项

1. A method for evaluating spectacle lenses by an evoked activity of a brain's visual cortex, the method comprising:
allowing a subject to wear lenses to be evaluated; allowing the subject to visually observe a visual stimulus object used to evoke an activity of a specific part of the brain's visual cortex through the lenses to be evaluated; measuring an evoked activity of the specific part of the brain's visual cortex when the visual stimulus object is visually observed by the lenses to be evaluated; and evaluating the evoked activity of the brain's visual cortex.