Anybody using the new crizal prevencia ? How's it working for you. What kind of price point are you using?
Anybody using the new crizal prevencia ? How's it working for you. What kind of price point are you using?
drink some more kool-aid himmerroo ;)
"what i need is a strong drink and a peer group." ... Douglas Adams - Hitchikers Guide to the Galaxy
It's now available as far as I know, and is pricing the same as Sapphire. We haven't run any yet, but have one of our docs interested in trying it out. Time will tell.
We saw a sample in office yesterday, and as expected, it DOES in fact change the visual experience, in that it lowers the visible light entering the eye (granted, in a small bandwidth range near the purple end of things), but also causes a yellowing of apparent vision - exactly as I said all these A/R's would do. In essence, it's an A/R, with a layer or two re-engineered to act as a flash purple mirror of sorts, while keeping the rest of the familiar greenish Crizal reflex color underneath.
Is this the same idea as Nikon's SeeCoat Blue? We've sold a few pairs, but the ex Japan 10 working day turnaround has killed it a bit for us.
I have it personally. What Uilleann said is accurate. It's essentially the same as the Hoya and Nikon equivalent. Priced the same as Sapphire but we get 3-5 day turn around just like everything else. People have pointed out the cosmetics when I have them on so there seems to be some trade off for the health benefits compared to the cosmetic ones.
As I understand it, there are no substantial health benefits. There is HEV filtration, but not much, and not in a way better than a simple tint. The selling point is reduction of blue scatter from displays such as phones or tablets, and consequent increased contrast and reduced CVS.
This is comfort, not health.
Not sure about the other versions but E is marketing it specifically as a health product.
http://www.youtube.com/watch?v=MAmcrT8o9Fw
Because we need an expensive lens option - as we're all too damn lazy to, Oh, I don't know....actually reach up and push a couple buttons to adjust the color of a display screen on our own. LOL
Not crazy about the residual color....
Numerous reps have come in here, and almost all claimed that their super-secret brand of blue (really purple actually) absorbing fancy pants AR DO NOT change the color of the lens. I've been happy to tell them they're wrong each and every time. There simply is no way whatsoever to alter the visible spectrum of light as it passes through a medium, and not have an altered color cast to a lens.
They all look like they've been swimming in the bottom of a urinal for a couple weeks to me. Just like Trivex did (and several HI's too).
It has to be somewhat yellow if the transmission to the eye is down 20% between415-455 nm. That's assuming there is a very good light seal around the eyes from a close fitting wrap frame.http://news.essilorusa.com/releases/...ble-nationwide
It might deserve a closer look for pseudophakia, although I'd strongly recommend additional protection from day/sunlight.
Science is a way of trying not to fool yourself. - Richard P. Feynman
Experience is the hardest teacher. She gives the test before the lesson.
Is anyone else having issues with crazing? We have only sold Prevencia once, to a patient wearing a single vision hi-index 1.60, and the coating crazed horribly within the first month... And has now done so again within a few months after having them redone. Our lab doesn't have any idea why this is happening and I'm hesitant to recommend the coating to our patients until we figure out what the problem is!
Edged my first pair this week. The patient is high risk for AMD from the genetic test. She had no complaints of the slight residual color, so we will see how it goes. Ordered a "show and tell" pair for myself which should be in tomorrow or the next day. I'll let you know what I think as it goes. :)
Unfortunately, one look at the sample plano that we glazed, and placed within our sample sets, and the "medicinal" appearance of the lens creates the same facial distortion as.................................castor oil, on a teaspoon, under the nose of a four year old child!
Eyes wide open
I have despised 2 pair. Both patients did their homework and came in for either SeeCoat Blue or Prevencia. I see more benefit to the Prevencia then the SeeCoat blue. I personally have the SeeCoat Blue on my own pair. I do like the slight color contrast myself.
We've made a number of test pairs with Prevencia on them and we've gotten two general reactions; either a dislike for the yellowish color or purple hue, or a number of regular computer users noticing less eye fatigue after being on the computer all day. With the snowy winter we've had up here the purple reflection was terrible the second you step outside and it's also pretty bad under fluorescent lighting. It's not as bad when it's sunny outside with less snow on the ground or indoors with incandescent lighting, but it's definitely still noticeable.
The general consensus among the people I've talked to about it say they would like it for intermediate/office glasses or if people spend a lot of time in front of the computer because of the reduced eye strain, but most would not prefer it on an everyday pair.
Wonder how many of those computer users would notice any difference whatsoever if you switched out the lenses for a regular A/R, told them it had the exact same benefit, and dispensed it at the same price?
Sticker shock induced placebo effect methinks?
They really don't cost that much more. I had a weird one. Lady bought glasses elsewhere and said they were turning her white kitchen a yellow colour. Brought them in for me to have a look at and she was wearing Prevencia. ECP sold it to her but didn't tell her anything about it.
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