Re: Rimless Glasses

On Wed, 30 Aug 2006 17:02:23 -0400, riserman <riserman@xxxxxxxxxxxxx>
wrote:

Are rimless glasses of 1.25 and 3.25 diopters in thinner plastic strong
enough to withstand the rigors of daily use without breaking at the
connecting points or should they be made of thicker plastic to hold up?

TRIVEX is far and away the material of choice.
n=1.67 aspheric plastic is second choice.
polycarb is third choice.

CR-39 is fourth choice.

Other high-index plastic or glass are worst choices (I won't use them
PERIOD).
.

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