I believe the machine you're referring to is called a Humphrey visual field analyzer. https://en.wikipedia.org/wiki/Humphrey_visual_field_analyser https://en.w

I believe the machine you're referring to is called a Humphrey visual field analyzer. https://en.wikipedia.org/wiki/Humphrey_visual_field_analyser https://en.wikipedia.org/wiki/Humphrey_visual_field_analyser