Bausch and Lomb Inversion Indicator?

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MS - 13 Jul 2006 05:54 GMT

B&L soft contacts are supposed to have an "inversion indicator", to indicate
which side of the cl goes on the outside, and which on the inside, so people
don't put them in backwards.

I'm test wearing a pair of B&Ls (Purevision Multifocals), and I don't see
the "inversion indicator". Where is it? How does one recognize which side is
which? If one looks at the B&L lettering from the correct side, is that the
outside? (Is that the "ïnversion indicator"?)

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The Real Bev - 27 Jul 2006 04:35 GMT

> B&L soft contacts are supposed to have an "inversion indicator", to indicate
> which side of the cl goes on the outside, and which on the inside, so people
[quoted text clipped - 4 lines]
> which? If one looks at the B&L lettering from the correct side, is that the
> outside? (Is that the "ïnversion indicator"?)

If it's right side out it looks like a round bowl. If it's inside out it
looks like a shallower bowl with an outward-curving lip. Mine won't
even stay in if I try to put it on inside-out.

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Cheers,
Bev
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Quick - 27 Jul 2006 05:37 GMT

>> B&L soft contacts are supposed to have an "inversion
>> indicator", to indicate which side of the cl goes on the
[quoted text clipped - 10 lines]
> outward-curving lip. Mine won't even stay in if I try to
> put it on inside-out.

That's one way. I found that to be really hard to distinguish
with Accuvues. Much easier with Cooper Visions.

To answer the OP's question with the accuvues they had
a "123" stenciled into them. You put the lens on your finger
and look at the outside of the bowl. If the characters read
ok you're good to go. It was really hard to see. You had to
hold it up to the light just right (not with the light directly behind
it to see. About half the time they would dry out and start to
wrinkle before I made the determination... I got an lens inserter
that it also a magnifing glass. You put the lens in a little cup on
the end of a clear plastic barrel and then look through the hollow
barrel. Instant id. I don't know who came up with the idea.
The thinner/flimsier the lens the greater the chance of not being
able to tell so something is needed but... you're trying to put
in your contacts because you can't see without them. duh.

-Quick

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