The most recent width of the participant's left pupil as reported by the eye tracker.
This property allows a script to read the last recorded pupil height for purposes of recording data, reporting feedback to participants, or directing the flow of a task or visual display.
The following displays the value of lastlefttpupilwidth in a text stimulus:
<text sometext>
/ items= ("height = <% eyetracker.lastlefttpupilwidth %>")
</text>