Purevision contact lenses, Bausch and Lomb and a word on torics
I personally think Purevision are a fantastic family of contact lenses. They are also a bit of a well kept secret. This is because Bausch and Lomb are not quite "out there" shouting out their virtues from every tv, radio and media treetop. This is very unlike some of the bigger players who use promotional mechanics to create new interest in contact lenses whilst simultaneously reinforcing consumer brand awareness for their own lenses.
Bausch and Lomb have had rather negative press coverage recently owing to their Moisture Loc contact lens solution's alleged link with fusarium keratitis. So much so in fact that I think it's time I said something about their great PUREVISION PRODUCT range!
A lot of great things in contact lenses came from Bausch and Lomb and this silicone hydrogel family is one of the best. Of course I am a little biased as I wear the Purevision Toric lenses myself, but I have to say that my patients absolutely love these lenses.
My referring ophthalmologist also wears them and when you consider that us optical people are inclined to be a tad fastidious, that's saying a lot!
Purevision is now available as a multifocal lens and has just entered the UK marketplace. This is great news for those needing bifocal or varifocal contact lenses. The material is breathable allowing more oxygen through than with conventional hydrogel lenses and the lenses are pretty durable.
A word on the toric (given my personal experience) - this has to be one of the most stable torics around giving nearly 100% consistency of sight. One of the most irritating things about toric contact lenses that opticians often fail to explain to patients is that they will not provide vision that is as constant as vision through specs.
Why? Because the contact lenses move on the eye and since torics are position dependent in order to work, anything short of glueing them on will create momentary fluctuations in visual stability. And this movement is necessary for tear exchange behind the lens which in turn flushes out the rubbish and brings in more oxygenated tears.
Specs on the other hand - when you blink, they stay put. Purevision torics come pretty close to my vision with specs so a big thumbs up to them! I'll be interested to see how the multifocal takes off as these are notoriously compromising across all manufacturing designs. Perhaps I'll write more on that later once the patients have been seen...
Bausch and Lomb have had rather negative press coverage recently owing to their Moisture Loc contact lens solution's alleged link with fusarium keratitis. So much so in fact that I think it's time I said something about their great PUREVISION PRODUCT range!
A lot of great things in contact lenses came from Bausch and Lomb and this silicone hydrogel family is one of the best. Of course I am a little biased as I wear the Purevision Toric lenses myself, but I have to say that my patients absolutely love these lenses.
My referring ophthalmologist also wears them and when you consider that us optical people are inclined to be a tad fastidious, that's saying a lot!
Purevision is now available as a multifocal lens and has just entered the UK marketplace. This is great news for those needing bifocal or varifocal contact lenses. The material is breathable allowing more oxygen through than with conventional hydrogel lenses and the lenses are pretty durable.
A word on the toric (given my personal experience) - this has to be one of the most stable torics around giving nearly 100% consistency of sight. One of the most irritating things about toric contact lenses that opticians often fail to explain to patients is that they will not provide vision that is as constant as vision through specs.
Why? Because the contact lenses move on the eye and since torics are position dependent in order to work, anything short of glueing them on will create momentary fluctuations in visual stability. And this movement is necessary for tear exchange behind the lens which in turn flushes out the rubbish and brings in more oxygenated tears.
Specs on the other hand - when you blink, they stay put. Purevision torics come pretty close to my vision with specs so a big thumbs up to them! I'll be interested to see how the multifocal takes off as these are notoriously compromising across all manufacturing designs. Perhaps I'll write more on that later once the patients have been seen...
2 Comments:
A quick update on the Purevision Multifocal is that it seems to be doing the trick quite nicely - a bit more minus power does need to be added in the distance to get equivalent vision to Soflens Multifocal, perhaps a feature of the material thickness? All in all a nice stable design.
Funny I've been wearing a trial pair of Purevision torics for three days now and so far, I hate them.
They're great for a while and then they turn and I can't see anything. The problem is, they don't turn back for a long time (sometimes 15 minutes) or they turn every time I blink.
I've been wearing acuvue torics until now, but wanted to try these because I tend to wear my contacts for 14 hours a day and something that "breathes" more is probably better. They seem more stable on my eye.
I've already tried Acuvue's Silicon toric lenses and they were worse--I could feel them all the time.
I'm starting to think my 20 year run with contacts is coming to an end--sigh.
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