Pics will do most of the talking.
Start with shit:
Perform wetsanding with the following grits (do this by hand for a few minutes each grit, rip each sheet in half and hold it in the palm of your hand):
Do NOT touch lens with fingers!!!
Let sit out in sun for 5 minutes to dry.
Use: Rustoleum ultra-clearcoat. Two medium-heavy coats spread 10 minutes apart.