We will use the Scalars electronic pupillometer DK-100, which is available only in Japan.
An application that measures changes in pupil area. Please consult a specialist for health concerns.
An area change in a pupil shows the function of the sympathetic nerve of an autonomic nerve and the parasympathetic nerve.
This software takes a picture of an animation of a pupil for 7 seconds and records, and analyzes, and shows to a chart.
A chart can be sent by mail.