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Medical Forum / General / Vision / November 2006Do I want non-reflection coating?
I hated the glasses I bought 18 months ago. They were impossible to clean and are now are badly scatched. The sales clerk said the problem was the antireflection coating; it holds onto oils and scratches easily. She recommended I go without it on my new glasses. I also bought a pair of safety glasses. The fitter disagreed. He said the new (3M) coating they use doesn't scratch and cleans easily. He also said that it greatly reduced eyestrain. I will try to wear the safety glasses in the shop, but if I do it 50% of the time that will be pretty good. So, do I get the coating for $45 or not? I don't see any problems wearing them, but the reflection off them is certainly much brighter than the old ones. Thanks. > The fitter disagreed. He said the new (3M) coating they use doesn't scratch > and cleans easily. He also said that it greatly reduced eyestrain. I think he's full of bull crap. The first tipoff was his comment that they "don't scratch." Now, some coatings are "scratch resistant," but to say they just flat DON'T SCRATCH is baloney. What are they made of, diamond? Same with "greatly" reduced eyestrain... so all these hundreds of millions of people who DON'T have AR coating are suffering from eyestrain? People that work in these places aren't exactly rocket scientists, and they often talk like this because it makes them look like "experts." Don't believe everything somebody says just because they're wearing a lab coat. Ron M. >> The fitter disagreed. He said the new (3M) coating they use doesn't >> scratch [quoted text clipped - 4 lines] > to say they just flat DON'T SCRATCH is baloney. What are they made of, > diamond? I presume he meant they don't scratch any worse than without the coating. > Same with "greatly" reduced eyestrain... so all these hundreds of > millions of people who DON'T have AR coating are suffering from [quoted text clipped - 7 lines] > > Ron M. > They were impossible to clean > and are now are badly scatched. How did they badly scratched? From cleaning them? If so, then you should adapt your cleaning methods so that they do not scratch the lens. How do you clean your glasses? > So, do I get the coating for $45 or not? I don't see any problems wearing > them, but the reflection off them is certainly much brighter than the old > ones. Well, if the glare does not bother you, then skip the coating. >> They were impossible to clean >> and are now are badly scatched. > > How did they badly scratched? From cleaning them? If so, then you > should adapt your cleaning methods so that they do not scratch the > lens. How do you clean your glasses? My old old glasses (and all the ones I had before them) were cleaned with a fresh Tshirt, and if really dirty and I had nothing else, with my fingers. They cleaned right up with my Tshirt and got better with my fingers. I had them 3 years without any scratches, but my prescription changed or I'd still be wearing them. I know it is treating them poorly, but it didn't seem to matter. My old ones were cleaned with the moistened lens cleaning tissues because all a Tshirt did was smear them even worse. Sometimes I had to clean them repeatedly because they wouldn't clean up. They scratched up horribly in less than 2 years. I am hoping my new glasses will be like my old old ones. >> So, do I get the coating for $45 or not? I don't see any problems >> wearing >> them, but the reflection off them is certainly much brighter than the old >> ones. > > Well, if the glare does not bother you, then skip the coating. No, I don't notice any glare. At least I don't think I do, what would it be like? > My old ones were cleaned with the moistened lens cleaning tissues because > all a Tshirt did was smear them even worse. Sometimes I had to clean them > repeatedly because they wouldn't clean up. They scratched up horribly in > less than 2 years. Even with special lens tissue, you still have to be careful to not wipe with force. This is what I do: 1) rinse glasses under running water to rinse off debris. 2) use generous amount of hand soap to remove oils. The key here is to apply soap as gently as possible, relying on the surfectants to clean, rather than pressure. 3) rinse glasses with running water to remove soap. 4) dab dry with facial tissue, no rubbing. Facial tissue does not leave lint (or at least not noticeable amounts). With that technique, even if your lens were made of iPod Nano screen (infamous for scratching), you won't get scratches. Try to envision a microscopic rock being dragged across the surface of the lens, and that should help your cleaning techniques. > No, I don't notice any glare. At least I don't think I do, what would it be > like? What were you referring to when you wrote, "the reflection off them is certainly much brighter than the old ones"? I thought you were referring to this (see the headlights photo): http://www.allaboutvision.com/lenses/coatings.htm >> My old ones were cleaned with the moistened lens cleaning tissues because >> all a Tshirt did was smear them even worse. Sometimes I had to clean [quoted text clipped - 25 lines] > referring to this (see the headlights photo): > http://www.allaboutvision.com/lenses/coatings.htm Yes, from the outside there are reflections. From the inside, using them, I don't see any glare, but I am not sure what glare looks like. > Yes, from the outside there are reflections. From the inside, using them, > I don't see any glare, but I am not sure what glare looks like. When you first got your previous pair of glasses with the anti-reflective coating did you notice any difference compared to your new pair? Was the previous pair more comfortable driving at night? That is one situation where glare is more noticeable. There is also the issue of others being able to see your eyes more easily when lenses have an anti-reflective coating - is that something you care about? >I hated the glasses I bought 18 months ago. They were impossible to clean The premium coatings incorporate a "slick coat" that makes the lenses easy to clean. I think they're easier to clean than uncoated lenses! >and are now are badly scatched. Could be scratches or a failed coating, probably the latter. The better coatings adhere extremely well and are slightly more scratch resistant than the older products from five to ten years ago. If they're charging $50 to $70 your getting older technology. The premium coatings should cost around $100. >The sales clerk said the problem was the antireflection coating; it holds >onto oils and scratches easily. She recommended I go without it on my new >glasses. I also bought a pair of safety glasses. Try it on the dress glasses. You should see a difference in clarity, back surface reflections, and starbursting at night. >The fitter disagreed. He said the new (3M) coating they use doesn't scratch >and cleans easily. He also said that it greatly reduced eyestrain. [quoted text clipped - 3 lines] > >So, do I get the coating for $45 or not? Not for $45, that's less than I pay wholesale for the best coatings! I would recommend that you get the best or none at all. Robert Martellaro ~~~~~~~~~~~~~~~~~~ Optician/Owner Roberts Optical Wauwatosa, Wi. ~~~~~~~~~~~~~~~~~~ "Science is a way of trying not to fool yourself." - Richard Feynman Robert, Can you offer a little more information as to what to ask for in AR coatings? I'm about to order up some lenses, and have been offered an AR for $50. TIA, > >I hated the glasses I bought 18 months ago. They were impossible to clean > [quoted text clipped - 34 lines] > "Science is a way of trying not to fool yourself." > - Richard Feynman >Robert, > [quoted text clipped - 3 lines] > >TIA, Short answer- ask for name brands- Zeiss Advantage, Essilor Alize, Hoya Super Hi-Vision. Make sure you're getting what you ordered. Expect to pay $85 to $120. Robert Martellaro ~~~~~~~~~~~~~~~~~~ Optician/Owner Roberts Optical Wauwatosa, Wi. ~~~~~~~~~~~~~~~~~~ "Science is a way of trying not to fool yourself." - Richard Feynman >>Robert, >> [quoted text clipped - 8 lines] > Hi-Vision. Make sure you're getting what you ordered. Expect to pay $85 to > $120. It is a 3M coating they say is new this year. It is $90, but 50% off. If it is not good I won't consider it. Thanks. Toller, Robert and others, I am in the same boat. For glasses that I wear full time, I paid for the diamond coating and, if it was even applied, it's not good. (I see headlight starbursts at night in all directions.) Can you tell us the manufacturers for 3M and Diamond, too? And any idea what about the "name-brand" makes it a better product? Thanks, dill > > > Short answer- ask for name brands- Zeiss Advantage, Essilor Alize, Hoya > > Super [quoted text clipped - 3 lines] > It is a 3M coating they say is new this year. It is $90, but 50% off. > If it is not good I won't consider it. Thanks. |
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