RocKingRuralMo
starting to spend too much on rocks
Member since July 2022
Posts: 105
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Post by RocKingRuralMo on Aug 26, 2022 18:32:45 GMT -5
Got my eyes checked today and talked to doc about a prescription specifically for working at my cabber. (Close field of view, maybe a bit over-strong for finding scratches etc.) Doc was super accommodating.
Does anybody wear prescription safety glasses? Is polycarbonate hard enough? Or does rock-dust scratch them up right away? I don't necessarily want to spend the $ if they're going to be destroyed in a matter of hours. But to be able to see my rocks at a higher strength sounds promising.
What are your experiences?
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Post by Peruano on Aug 27, 2022 6:57:53 GMT -5
Grits can scratch even the super hard surfaced optical materials, so care in cleaning is important. In my scheme, rinse them under running water with a bit of dish soap before ever rubbing them with cloth. I think the real problem is grit from tumbling but rock dust from cabbing might be a source too. Let's just say I've scratched a few sets of glasses. My solution is to go to cheap bifocal readers (lenses with plain optics above and a window of the appropriate reader magnification below). I believe the last ones I bought were through Walmart and in the range of 3 pair for $21. I try to wear them when I'm in the shop or the oldest most disposable of my actual prescription glasses.
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Post by rmf on Aug 27, 2022 22:46:50 GMT -5
I have had the same conversations with my Dr. The bottom line I had insurance that paid for a new pair each year so I got some extras over time. One of the older ones is designated as a cabbing pair and I wear that to cab. I am very careful with it since it is polycarbonate being careful to wash with water not to rub dry. have not had problems with major scratching. just for the record they would not make me a reasonable price on white sapphire lenses which would be hard enough. so I went the other way use the oldest glasses for cabbing and have spares.
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Post by stardiamond on Sept 3, 2022 19:20:50 GMT -5
I buy nonprescription readers at Costco. Eye protection and magnification. I use them working grinding, on the computer and reading fine print. I was buying 4x at Amazon. I had cataract surgery and my vision improved so I only need 2x now. I have a lot of them, lost, temporarily misplaced or damaged. I tried prescription readers with astigmatism correction but for my eyes they weren't necessary.
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Post by Pat on Sept 3, 2022 21:21:49 GMT -5
I always wear prescription trifocals. Safety glasses fit over them, as do Optivisors to prevent scratches while cabbing.
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RWA3006
Cave Dweller
Member since March 2009
Posts: 4,171
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Post by RWA3006 on Sept 3, 2022 23:04:22 GMT -5
I manufacture ammunition on a commercial scale and I always want glasses that have a large surface area to intercept stray random small items that fly around. This is always at low impact energy and on occasion if my activities are getting a little more western I'll wear a full face shield. What I've stumbled upon is many technicians can add the lower bifocal prescription to the upper part of the lens so I can see up close when looking through the top of my glasses. I love this feature and I think my optometrist called it a "tradesman prescription" Here's a pic of mine and you can see the lines in the lens that separate the focus.
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