Impairment Testing Pupilometer for checking the size of the pupils during an impairment test and other tests that require pupil size.
Also acts as a 6 inch (15cm) ruler.
In addition it gives average pupil sizes and expected common pupil size in direct light, room light and near total darkness. Rear centre gives possible reasons for dilation & constriction and unequal pupil size. Details common vital sign expectations.
