The ability to see without eyes is known as extraocular vision
Latest research shows that species of brittle stars, which are relatives of starfish, can see even though it does not have eyes. It becomes only the second creature, after a sea urchin species, known to have this ability
The brittle star sees with the help of light-sensing cells that cover its entire body. These light-sensing cells give the brittle star visual stimuli, allowing it to recognise coarse structures such as rocks
