To get a successful calibration while using eye tracking on a cross-eyed participant , What we can do is :-
Use an eye patch to allow the eye-tracking software (pixel sensitive) to focus on one eye.
This is because many people have squint in their eyes, to a certain degree, i.e. 10 ° - 5 ° which is enough to mislead the eye-tracking software which is pixel sensitive to reach a conclusion that the eyes are attracted an empty white space on the site or on the software.
To know more about eye calibration, check the links.
https://brainly.com/question/16599538
https://brainly.com/question/17307577
https://brainly.com/question/24640008
#SPJ4