Irene Román found this illusion, while looking for some in Google. She asked us if these two concentric circles below look irregular? “They obviously are”, some of you may say. I did as well! Well, since this is optical illusions website – they’re not! This type of visual phenomena is well known to me. I have shared over a dozen of similar variations in the past, haven’t I? But this one probably shares the strongest effect! When I look at it up close, I understand that they are regular, but still have trouble seeing them regular as a whole. Nifty, ayeh? I have linked some words in this text to help you compare this illusion with some very similar from the past.