It indicates that the fish had ancestors that did have eyes that were used to see, and then, because of natural selection and evolution, the fish evolved to not need eyesight, thus being blind, but, did not evolve so that there were no eye sockets etc.
Dim it depends on their parentsooooo and internet internet and internet is so good that i can get a better chance to watch the video on ur ipad and internet and it doesn’t show S