Originally Posted by TonyFromWestOz

I doubt that the reversing lenz was much clearer when new. I have owned several cars built in the '80s and none had "CLEAR" recversing lamps or turn signals, they were all opaque.
Putting a CLEAR lenz on it will only look cheap and plasticky.
The opaque lenz was designed to give a good spread of light.
Be content. Accept age with grace. Grey hair is not the first sign of age, opaque reversing lenses are. The car was born with them.