Learn Eye Precision

Eye Precision overview

Eye Precision gives hard data about eye movements and shows them as graphs. It measures the position of the pupil in a video of the eye, frame by frame, and can compare it with where a target on the screen was

Everything is processed on your own computer: no videos or data are uploaded to the internet

Three steps

• 1 Run Test – show standardised animations (pursuits, saccades, optokinetic and more) and record the eyes, with goggles, the computer's camera, the EP Recorder iPhone app or OBS
• 2 Track Eyes – measure the eye position in the video. This works with any eye video, however it was recorded, as long as the pupil is clear and visible
• 3 Compare to Target – compare the eye position with where the target was, in an interactive graph with the video alongside

You can start at any step. Track Eyes is included with Eye Precision; Run Test and Compare to Target need an EP Animations license

Remote testing

With Create Remote Test, the same animations can be run at home, in a web browser or in the Eye Precision Tests app. The recording can then be analysed in Track Eyes and Compare to Target. See Remote Testing

Related apps

• EP Recorder (iPhone) – records eye videos with a smartphone and sends them straight to Eye Precision
• Eye Precision Tests – runs remote tests from a code
• EP Latencies – animations and analysis for measuring differences in saccadic latencies

Results

Eye Precision gives video, graph and data (CSV) outputs, which can also be used in other programs. Use them to measure and document eye movements, to show eye movements in research papers, or for teaching students and the public

Which device does what

On an iPad the animations and the recording can't run at the same time, so record with a second device. Videos from any device are analysed in Eye Precision on a computer