Re: scratched plastic lens

"Terry Orchard" <[EMAIL PROTECTED]> wrote in message
news:[EMAIL PROTECTED]
> Killinchy wrote:
>
> >I have a pair of "glasses" - the lenses are plastic and coated with a
> >non-glare finish.  One of the lenses has become covered with many fine
> >scratches.  (I've never polished them with anything other than cotton,
and
> >I've no idea why one lens is so bad).
>
> It could be a failed coating. These sometimes fail in a way that looks
> kind of like failed varnish. If the lenses are less than a year old,
> return to your optician and see if the coating failed, and if so, will
> the shop replace them for free. Anti-reflective (AR) coatings often
> have a 1 or 2 year warranty, at least in the US.
>
> On the other hand, if you polish the lenses dry, it could be just that
> you've scratched the lenses. AR coated lenses should be cleaned in
> running water before touching them with a drying cloth. The
> micro-fibre cloths are good for drying.
>
> >Can I polish the lens myself?  I have a rock-tumbling kit with all the
> >powders.  I thought of replacing the lens , but the price was a
staggering
> >$199.
>
> I've heard of people trying to do this, but I doubt it succeeds.
> Especially with an AR coating.
>
> Your optician might be able to remove the coating on the lenses; if
> the scratches are just in the coating, that might improve things.
> Whether the coating can be removed or not depends on the type of lens
> material and the coating, consult your optician.
>
> >My health plan kicks in  six weeks - so I'm loathe to buy new specs now.
>
> Personally, I would wait out the 6 weeks. :)
>
> Repost this question in sci.med.vision, and you'll get more expert
> replies. That's where the optician type folks hang out. If you know
> what material the lenses are, and what kind (brand) coating you have,
> that will help.
>
> Terry
>

Thank you - that was great reply

John