Thread: Do old -style opticians cut lenses on premises [OT]
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Dave Liquorice Dave Liquorice is offline
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Default Do old -style opticians cut lenses on premises [OT]
On 24 Sep 2006 09:58:06 GMT, Bob Eager wrote:

I believe that some prescriptions actually require glass lenses, due to
differences in refractive index and the sheer thickness required. This
may have changed.

I choose glass lenses and high refractive index glass as well. Plastic
lenses would be more than twice as thick as these glass ones at the
edges, that is they would be over a 1/4" thick.

--
Cheers
Dave. pam is missing e-mail



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