blindspott

I have got 3 gold fish they are all around 7 years old, and two of them have developed very interesting growths - any information at all would be extremely helpful: ABOVE : This fish I think has the most interesting growths (2 growths). The first growth: the fish has a growth that covers the majority of both eyes - it has seemed to have formed a top layer. It doesn't seem to obstruct the eye as it can move under the growth. The second growth is like a white like Boil on the forehead. The third is a small like pimple on the side of fins. ABOVE: Single growth on the top of the eye. Any suggestions or comments would be greatly helpful. I would like to know: What are they? How do/did they form? And what should I do (if anything)? Any other information would be appreciated!