More comfortable frames for these Uvex safety glasses?
December 27, 2014 5:56 PM   Subscribe

I want to use Uvex S1933X blue-light blocking glasses, but they're too uncomfortable—they pinch my temples and the nose bridge is hard plastic. Thankfully the lens just pops out. Do you have any thoughts on where to find empty frames to which I could simply glue or tape the lens?

Note that the lens is a single piece of plastic, so a replacement frame would have to be some sort of simple bar.

Alternatively, I wouldn't be averse to buying different glasses that also block light wavelengths below 550nm. I selected these particular Uvex glasses specifically because the spectral transmission curve shows a sharp drop at around 550-560nm. They're basically the only ones for which I could find the data, so I'm reluctant to buy some other glasses that claim to also "block blue light" without data to back up the claim. But if you know of some, I'd appreciate finding out about them. That might be a better solution in the end.
posted by StrawberryPie to Health & Fitness (3 answers total)
 
UVEX lens options are standard between their different safety glasses models. You could buy any other frame with the "SCT-Orange" lens, like this one. Take a look at BluBlocker glasses, too (although not all models are ANSI Z.87 compliant).
posted by halogen at 6:06 PM on December 27, 2014


Do you have any thoughts on where to find empty frames to which I could simply glue or tape the lens?

I'd try a brick and mortar opticians. They might have oakleys frames which can physically fit the Uvex lens. And they could even grind off the nosepiece and pop in one of the oakleys nosepieces.

Or they can hack up the lenses and pop them into generic frames.

Maybe.

You can also try the spinner rack of frames at a sporting goods store or drugstore, in which case check out the ones which already have copper, amber, or orange lenses.

If you are handy and the opticians are useless, you can cut or grind off the nosepiece and build your own out of polycaprolactone or sugru.

I selected these particular Uvex glasses specifically because the spectral transmission curve shows a sharp drop at around 550-560nm.

Corresponding with this, they have a strong orange tint. Other lenses that appear orange should work, because the physics would have to be weird for them to be orange and not absorb blue or cyan light. As a rough rule of thumb, put them on and look at an RGB model on your smartphone or computer. If you can't see the blue component, then the blue light (460 < λ < 490 nm) from the leds isn't reaching your eyeballs.

Unfortunately blue leds can make a fake cyan rectangle on a screen but are completely useless for seeing if the lenses block cyan light, (490 < λ < 520 nm), which you may get from some of your ambient lighting but not your digital devices. For that you'd want to print out a bit of cyan-colored squares with any printer.

The other suggested items on Amazon which are amber, copper, or orange tinted often have numerous positive reviews saying they will work if you search for the word "sleep". example 1. example 2.
So they will work. Be careful, there are one or two sunglasses out there which did not work for people, according to the reviews.

For prescription sunglasses I'd email the manufacturer and get a spectral absorption chart.
posted by sebastienbailard at 10:27 PM on December 27, 2014


If you've got the big bucks Google Laser Safety Glasses or Goggles. Here is a filter selection chart from Laservision. Note that some filters only block a narrow band.

Sometimes you can find the right flavor on eBay
posted by tinker at 10:05 AM on December 28, 2014


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