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The default is set by the lab, here in Europe the lab in Portugal uses wrap 15 tilt 9 for all attitude lenses unlessyou provide the data.

Most of the prism is thinning prism @270 because it is a progressive. IMHO the wrap angle that youve given your lab is wrong, lowering it by 7 degrees would lower the power 0.20 dpt and solve the...

If you listen to your average sales rep it is :cheers:

It is interesting matter and it took me a while to figure out why it can have a large effect on vision and comfort.



I disagree (partially). If you choose to sell a compensated lens with...

The same here but in Dutch:)


If you try to aproch perfection you have to measure these difficult values.


You can say the same thing about fitting height.


We can only measure the power...

Correct, thats power compensation. If you talk about optical compensation you're not correct. A vertex in the frame of 14 gives you a softer FreeFrame lens than a vertex in the frame of 12 in the...

Sorry Mike, I have to agree with Darryl here.

"power compensation" is the differance in power between vertex distance at refraction and vertex distance with the frame. In contacts this is very...

Hi Gary,

I've seen this power problem with some Attitude lenses and usually the problem is a wrong faceform angle. Most centration system out there calculate the faceform angle at the temporal...

Hi Michael,

Creation is still one of our best sellers.

Best regards from Holland

Most people use tinted plastic and often with an HMC

Lets hope that Drivewear will change that. An other interesting fact is the total failure of poly and trivex in Europe or are the impact resistance regulations the couse of the succes in the US?

Here in Europe Shamir Autograph 1.74 is available from -18.00 to +13.50. I

We use Optisafe pads by Phantom Research Labs, Inc. and we allmost have no misedged lenses SH AR lenses anymore, sometimes a high power over -8.00 or +6.00. You should try them.