There is all the difference in the world between a creature losing the ability to see and a creature developing the ability to see. The one is going from more complex to less--the other is going from less complex to more complex. The argument is fallacious.

Steve

So what about the recent research indicating that a strain of E Coli after 30,000 generations being grown in the presence of citric acid can now process citric acid which is something that E Coli has never done before?

So far I think you are the only one arguing that salamanders losing their eyesight is proof that eyes can develop.

prove the arrow goes one way--losing eyesight. They do not prove it goes the other way, they don't provide that example. You INFER that it can go the other way.