90s optical illusion fad (5,3)
I believe the answer is:
magic eye
(Other definitions for magic eye that I've seen before include "Photoelectric cell for detection" , "electronic sensor" , "Tuning aid" .)
I've seen this clue in the Universal.
Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free.
Check out my app
or
learn more
about the Crossword Genius project.