How to design spectacle lenses by evoked activities in the cerebral visual cortex, etc.

摘要

To provide an evaluation method and a method for designing a spectacle lens using an evaluation method of a SPECTACLE lens by an induction activity such as a cerebral visual field, which can objectively evaluate an objective lens that can be applied to a user by measuring a brain activity.SOLUTION: A subject wears a lens to be evaluated, visual stimuli to induce the activity of at least one of specific sites of the visual cortex of the cerebrum and at least one of the specific sites of the retinal visual cells are viewed through the target lens to be evaluated, the evoked activity (evoked activity of the cerebral visual cortex, etc.) of at least one of the specific sites of the visual stimulation target and the retinal visual cell in visual stimulation of the visual stimulus target by the evaluation target lens is measured by electroencephalograph and magneto-encephalograph, and the spectacle lens is evaluated based on the time (latency) and the magnitude (amplitude) of the activity until the change occurs after visual stimulation.SELECTED DRAWING: Figure 1