Optical illusion query, “Which is longer, ___?”

Let's find possible answers to "Optical illusion query, “Which is longer, ___?”" crossword clue. First of all, we will look for a few extra hints for this entry: Optical illusion query, “Which is longer, ___?”. Finally, we will solve this crossword puzzle clue and get the correct word. We have 1 possible solution for this clue in our database.