Meguiars PLASTIC polish, polish by hand, plenty of clean white cotton cloth makes the lenses looks like candy later!
Buffing wheel with rouge is tricky. If speed is too fast or you push a bit too hard, you will melt the plastic. Been there, done that, have the t-shirt. If you want to use a power tool, I suggest a cordless drill. Power and speed are in safer range to work with.
When I was polishing my metal pieces I came across a string buff wheel and some plastic polish... Looked like new when done, surprised me how nice they looked when done..
BUT, Be carefull... as said above take your time and apply NO pressure... AND make sure your buff does not catch it and fling it into a million pieces of plastic......
