Trifocal in photogray PGX

[mastertech]

Hello
I king of stuck in situation where customer wants line trifocal Photogray PGX lenses in 1.6 Index, does anyone heard of any lens company that would sell this product? Last I heard they do not have such a product on the market, but I could be wrong. Thank you for any information.

[Gary Falk]

Available from Vision-Ease Lens, 7x25, 7x28 & 7x35

[gemstone]

Don't you want an executive?

[Uncle Fester]

Be sure to warn the patient that the lenses do not darken through the seg areas as the silver halide (sp) crystals which cause glass photochromics to react are behind the higher index glass segment that is fused and polished onto the blank.

In other words they will have a clear ring through the segs in the sun!

[mastertech]

Thank you for your info, it helps a lot to see what's up there.

[Jacqui]

Check also with Xcel, they list it on the website.

[DragonLensmanWV]

Be sure to warn the patient that the lenses do not darken through the seg areas as the silver halide (sp) crystals which cause glass photochromics to react are behind the higher index glass segment that is fused and polished onto the blank.

In other words they will have a clear ring through the segs in the sun!

OK- show of hands!
How many people have had someone with PGX lenses come in complaining that their bifocal (St-28) doesn't get dark. And when told the reason why, they invariably say, "Well, my OLD ones did!"