A head-scratching optical illusion challenges the perception of color and how the brain plays tricks on us. In an image created by the UK contact lens vendor Lenstore, a series of lilac letters ...

How many purple dots do you see in the image above? Are they all the same hue? This new optical illusion, developed by ...

This risky trend is iris-istable. An ophthalmologist with 3.4 million followers on TikTok has gone viral due to his specialization in changing people’s eye color permanently. Dr. Brian Boxer Wachler ...

What’s the colour of the laptop or mobile screen in front of you? Is it white? What if we tell you that it's not really white? Yes, that’s right. You are being fooled into thinking that you’re seeing ...