The Corneal Reflection Pupillometer (C.R.P.) for precisely measuring and digitally recording pupillary distances. Used for measuring of monocular and binocular pupillary distances for all distances between 35 cm and infinity. Monocular pupillary distances can be measured by occluding one eye if the patient's binocular vision is abnormal. Monocular and total pupillary distances (from 48 ti 77 mm) are measured in 0.5 mm steps. Automatic lighting and digital display. Dimensions: W 250 x D 160 x H 60 mm. Net weight: 720 g. Uses 2 x 1.5 V batteries.