Abstract

Background: Currently, there is no affordable recording tool for screening and documentation of a relative afferent pupillary defect.
Study design: We describe a frugal, do-it-yourself handheld binocular pupillometer device called Pupilmate
Methods: Two simple Wi-Fi-enabled board cameras fitted on both sides of the back of a rectangular cardboard box separated by a central paper divider, one side of the rectangular box was left open. An infrared red (IR) light source in the form of light emitting diodes (LEDs) was fit around each of the cameras. 2 white light LEDs were fit on either side of the box controlled by a two-way switch. A simultaneous video stream of both pupils could then be tuned in on any chosen device using the internet. Each pupil is manually illuminated for the desired period allowing recording of direct and consensual reflexes which is objectively observed. Approximate Cost of production is Rs.2200/-.Pupil reactions were easily recorded and assessed with the same.