"Roger Mills" wrote in message
...
The prescription specs which I use for computer-based activities have a
scuff mark about the size a finger-print from a little finger on one of
the (plastic) lenses.

Whilst I could buy a new lens for £30 or so, I've been trying to polish it
out on a DIY basis.

I tried Brasso but didn't do a lot because the blemish was a bit too deep.
I then rubbed the area very gently with very fine wet & dry, used wet.
This got rid of the scratches, but left the area looking like frosted
glass. I've improved it quite a lot by buffing it with a dremel-like tool,
using a buffing paste made from olive oil and talcum powder (how DIY can
you get!) followed by a further application of Brasso. The affected area
is still a bit blurry.

Any ideas of what else to try?

Toothpaste? That often contains a very fine abrasive.