A non-invasive method for studying an index of pupil diameter and visual performance in the rhesus monkey (2006)

Fairhall, S. J., Dickson, C. A., Scott, L. et al.

Abstract

Animals were trained to co-operate with a novel device, which enabled eye movements to be recorded using modified human eye-tracking equipment, and to perform a task which determined visual threshold contrast. The method obviates the need for invasive surgery and, as the position of point of gaze can be approximately defined, the approach may have utility in other areas of research involving non-human primates.