where to find those trial lenses

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Liz Day - 15 Nov 2006 05:11 GMT

Greetings,

Those sets of trial lenses and frames..... I want one. I think that if

I played around with them for half an hour, the mystery of my
distance/astigmatism correction would be solved. (Or possibly not; but

at least I'd find out.)

Any suggestions on where to obtain? What size to get (I guess they
come in 24 and 38 mm?). Anybody on here want to sell me theirs (or
maybe loan me a subset of their lenses for a fee)? Know where best to
look for used ones?
I called the Indiana University optometry school, but they could only
refer me to various manufacturers. I thought I'd check here first for
recommendations on what to get and where to find it.

Thanks!!

cheers,
Liz D.
in Indianapolis

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Mike Tyner - 15 Nov 2006 07:18 GMT

> Those sets of trial lenses and frames..... I want one. I think that if
> I played around with them for half an hour, the mystery of my
> distance/astigmatism correction would be solved. (Or possibly not; but
> at least I'd find out.)

Currently Ebay turns up 20 results for "trial lens set" and 13 more in ebay
stores.

Some small sets don't include cylinder lenses.

-MT

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otisbrown@pa.net - 15 Nov 2006 14:41 GMT

Dear Liz,

A trial lens kit sells for about $700 I believe.

Ebay probably has kits for less.

I would like to see a low-cost (reduced) trial lens kit
developed commercially -- for exactly the
purpose you describe.

This would be like the blood-pressure kits that
are available in the stores. They are not for
"prescription" of medication, but only
for personal checking.

By using only increments of 1/2 diopters,
with three cylendar lenses (again in 1/2 diopter
increments), you could probably produce
such a kit for about $100.

This would be a great idea for Edmond Scientific.

But you could generally check a prescription,
and confirm any refractive change you might
develop.

It would also give you a better idea of how
a "prescription" is developed for your eyes.

But it depends on your interest.

Best,

Otis

> Greetings,
>
[quoted text clipped - 18 lines]
> Liz D.
> in Indianapolis

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