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06-09-2003, 02:04 AM
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#1 of 15 
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Member
Join Date: Jul 2002
Local Time: 10:29 PM
Local Date: 10-11-2008
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Eyeglasses!
Within the last 3 years, my wife and I both had new glasses prepared from new prescriptions.
In both cases, the lenses have been very prone to develop smudges that result in areas of blur, as well as excessive amounts of scratches. My wife has already had hers replaced, and I'm wearing my previous prescription glasses, until I can get around to replacing the pair I'm supposed to be wearing.
We've both worn glasses for decades. I've never encountered such rapid deterioration before.
Did we get suckered into some coating that is susceptible to easy damage, or have the manufacturers developed a way of making glass less durable, so we have to buy more, or have we just been unlucky?.
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06-09-2003, 03:54 AM
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#2 of 15
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Join Date: Feb 2003
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Local Date: 10-11-2008
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Sounds to me like they weren't hard coated. That's a very thin, transparent resin that is applied to plastics and glass that makes them very scratch resistant. I don't think it should be a problem if you took the glasses back to their place of purchase and have it done. It should take less than an hour if they have the necessary items at their location.
I don't know if there are significant differences between hard coat formulas. My father is an optical engineer, though, so I'll ask him tomorrow and let you know.
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06-09-2003, 01:09 PM
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#3 of 15
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Quote:
| Did we get suckered into some coating that is susceptible to easy damage, or have the manufacturers developed a way of making glass less durable |
Are you sure they're glass? Lots of prescriptions are now filled with plastic lenses unless you specifically ask for glass.
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06-09-2003, 09:43 PM
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#4 of 15
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Join Date: Nov 2001
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Local Date: 10-11-2008
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I am wearing the glasses I got over 4 years ago, they have lenses made of Glass, I will not buy plastic lenses simply because the scratch too easily no matter what coating is on them
I am waiting for the glasses industry to start offering lenses flash coated with synthetic sapphire like they do with high end watch crystals, second hardest substance known and easy to apply
but that probably will not happen because they want you to damage your glasses and buy more
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06-10-2003, 12:49 AM
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#5 of 15
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Joe Kauffman
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Location: Clearwater, FL
Join Date: Aug 2001
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Local Date: 10-11-2008
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In my glasses buying experience, plastic's cheaper than glass, even with the added expense of a scratch-proof coating. My plastic lenses are about 4 years old and scratch free.
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06-10-2003, 12:59 AM
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#6 of 15
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Member
Join Date: Oct 2002
Local Time: 01:29 AM
Local Date: 10-12-2008
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don't go to lense crafters they are a rip off, i had my previous glasses for 4-5 years and they don't have a scratch on them, they are the plastic with hard coating, my new glasses the same...i think most people get ripped off with their glasses for not shopping around, i'm wearing designer glasses with all the extra options on the lenses and crap for 200 while when i checked out lense crafters they wanted 180 for cheesy frames and the basic lenses...
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06-10-2003, 11:48 AM
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#7 of 15
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Member
Location: Toronto, Ontario, Canada
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All coatings are not created equal, not only in terms of scratch-resistance, but also flare and proper colour registration. The best coatings I've ever seen were Pentax's SMC (Super Multi Coating), the same stuff they put on their camera lenses. Unfortunately, it is no longer possible to get SMC on your eyeglasses here in Canada.
Zeiss also have an excellent coating, which at some point was the same as Pentax's SMC -- the two manufacturers had a technology exchange back in the '70s.
Both of these coatings are expensive, but you get what you pay for. I had an epiphany a number of years ago when I realized I was accepting a far lower standard of quality for my eyeglasses than I ever would for my camera lenses. How backwards is that?  |
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06-10-2003, 01:30 PM
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#8 of 15
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Member
Join Date: Jan 1999
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Most "anti-glare" coaring causes smudges out the yin-yang. I hate them. You have to wash your glasses a hundred times a day. I have three year oldpolycarbonate lenses in my everyday glasses and my prescription sunglasses and they are virtually scratch-free after all this time. I don't take especially good care of them.
Philip Hamm
Moderator Emeritus
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06-11-2003, 08:44 AM
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#9 of 15
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Member
Location: Toronto, Ontario, Canada
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Quote:
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Most "anti-glare" coaring causes smudges out the yin-yang.
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That's because most anti-glare coatings are lousy. Go for the good stuff.  |
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06-11-2003, 08:56 AM
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#10 of 15
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Member
Join Date: Jul 2002
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-Thanks for all the info guys, it is likely my lenses are plastic, because they are large and would be quite heavy if glass.
So it sounds like its the quality of coatings, and I share the concern that the sellers don't want to sell good coatings, for the obvious reason. But I'll try harder to find a better one next time, which may be soon, given the smudges I've got |
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