Hello. I was reading an article about Stiles-Crawford effect, and some information is not clear for me. Can you help me and write this para in another way:
To ensure that the the cone population tested was homogeneous, a small brief test flash, brought into eye through the center of the pupil, was placed at the threshold by varying the intensity of a large adapting field.
--------
Actualy, I don't understand what did they mean here: "...brought into eye through the center of the pupil, was placed at the threshold by varying the intensity of a large adapting field."
Thanks.
To ensure that the the cone population tested was homogeneous, a small brief test flash, brought into eye through the center of the pupil, was placed at the threshold by varying the intensity of a large adapting field.
--------
Actualy, I don't understand what did they mean here: "...brought into eye through the center of the pupil, was placed at the threshold by varying the intensity of a large adapting field."
Thanks.