Glasses with "digital block"

[co-joe]

So new glasses can come with a coating that filters out some of the blue light associated with disrupted sleep cycles, and circadian rhythms. Has anyone bought this feature on their glasses and did you get any adverse issues with flying like happens with polarized lenses?

Lense Crafters calls it "Blue IQ", Smart Buy Glasses calls it "computer vision"...etc

[valleyboy]

Personally I would not buy glasses from Lens Crafters or any other chain eye care compnay (most are all owned by the same guy. Their quality control is very poor (I think it was on market place)

I have gone through it all and and the best is just cough up the money for best quality. My personal preference is for light weight (8 grams) and the cost is about $800-$1000 a pair. Go to an expert for your questions on coatings. Smaller exclusive shops who deal in best quality lens (such as nikon) can answer your questions and give you the best product.

Treat your eyes like your ears. Most young guys fork out for Bose. Your eyes are just as important and we all end up wearing them.

[co-joe]

I appreciate your opinion, but there is an acceptable mark up I'm willing to pay, in a retail environment, and 500% is not it. I've bought from optometrists, the mall, and on line, and there is no difference except price.

Anyway the question was; does a blue light coating screw up the view of EFIS?

[av8ts]

Personally I would not buy glasses from Lens Crafters or any other chain eye care compnay (most are all owned by the same guy. Their quality control is very poor (I think it was on market place)

I have gone through it all and and the best is just cough up the money for best quality. My personal preference is for light weight (8 grams) and the cost is about $800-$1000 a pair. Go to an expert for your questions on coatings. Smaller exclusive shops who deal in best quality lens (such as nikon) can answer your questions and give you the best product.

Treat your eyes like your ears. Most young guys fork out for Bose. Your eyes are just as important and we all end up wearing them.

This is like the guy who sees a sign for guitar lessons and calls the number and yells at them that he doesn’t want guitar lessons.
The question was about “digital block”

[valleyboy]

This is like the guy who sees a sign for guitar lessons and calls the number and yells at them that he doesn’t want guitar lessons.
The question was about “digital block”

The point was stay away from Lens Crafters - they are very substandard and go to an expert to find out about digital block. I suspect it's a brand name flogged by them. If it relies on UV it's useless and a gimmick. Same as auto darkening don't work behind a windshield -

I guess one needs to be very literal here and reduce communications to grade one level as opposed to the accepted standard of grade 6 when writing.

[Hockaloogie]

Everything old is new again...

[CpnCrunch]

The question would be: why would you want these lenses? If you wear them during the day they're going to (very slightly) screw up your circadian rhythms. The only potential use for them is wearing in the evenings when you're indoors and looking at a computer screen.

[co-joe]

There's some really interesting science out about the harmful effects of a part of the blue spectrum emitted by electronics, fluorescent lamps, and various other non natural sources. With fluorescent lamps you can buy "notched blue lights" that don't emit a certain part of the blue spectrum responsible for circadian disruption. New phones and TV's are coming with the ability to filter out blue light. I put my S9 filter on a few months ago and have left it on, my older dumb TV doesn't have this option....the new ones do.

[CpnCrunch]

There's some really interesting science out about the harmful effects of a part of the blue spectrum emitted by electronics, fluorescent lamps, and various other non natural sources. With fluorescent lamps you can buy "notched blue lights" that don't emit a certain part of the blue spectrum responsible for circadian disruption. New phones and TV's are coming with the ability to filter out blue light. I put my S9 filter on a few months ago and have left it on, my older dumb TV doesn't have this option....the new ones do.

I think that reducing the blue light on your phone is probably more useful than these glasses. I'd recommend reducing the general brightness of your room in the evening, and the brightness of your phone. You don't want to do this during the day, as you want as much of the non-damaging blue light as possible, so that you reset your circadian clock. I'm not sure that just filtering blue light is all that useful...if you reduce the brightness of your device (or put it on auto brightness and ensure your room isn't to bright) that will reduce the overall blue light entering your eyes.

[No Smoke, No Fire]

I got a pair of these lenses from my optometrist about 16 months ago. They weren’t cheap, but anything prescription rarely is!

As to your question: no I do not notice any problems viewing displays in the cockpit like what happens with polarized lenses. The only noticeable effect is that everything takes on a slightly different hue, but you don’t notice until you take them off, and you adjust within seconds.

[co-joe]

...

I think that reducing the blue light on your phone is probably more useful than these glasses. I'd recommend reducing the general brightness of your room in the evening, and the brightness of your phone. You don't want to do this during the day, as you want as much of the non-damaging blue light as possible, so that you reset your circadian clock. I'm not sure that just filtering blue light is all that useful...if you reduce the brightness of your device (or put it on auto brightness and ensure your room isn't to bright) that will reduce the overall blue light entering your eyes.

It's not the entire blue spectrum, just part of it that basically the sun does not emit, but that man made sources do. I don't even think its visible, as light at the blue end of the visible spectrum appears white. I have a terrible time sleeping, especially after a few days off. Yes I drink waaaay too much coffee, sleep in on my days off, don't exercise enough,... it's one piece of the puzzle. I just want to try it out. The coating is only $29, but if it makes the glasses too dark, or messes up EFIS views then obviously it's not worth it.



No Smoke, No Fire, thanks for the reply. It's Appreciated.

[CpnCrunch]

It's not the entire blue spectrum, just part of it that basically the sun does not emit, but that man made sources do. I don't even think its visible, as light at the blue end of the visible spectrum appears white. I have a terrible time sleeping, especially after a few days off. Yes I drink waaaay too much coffee, sleep in on my days off, don't exercise enough,... it's one piece of the puzzle. I just want to try it out. The coating is only $29, but if it makes the glasses too dark, or messes up EFIS views then obviously it's not worth it.



No Smoke, No Fire, thanks for the reply. It's Appreciated.

Yes, I understand what it does. Bright blue light resets your body clock. You really need to have that blue light going into your eyeballs during the middle of the day if you want to have a healthy sleep-wake cycle, as that is what causes your brain to release melatonin at night. (Also, stress/activity during the day will do this). It's just in the evening that you want to block the blue light. So you can either wear the blue-blocking glasses in the evening, or you can just turn all the lights down in the evening (including your phone) which will achieve the same result.

It's really the amount of blue light that matters, so you don't need to block it all. If you're out in the sun (or even under clouds) in the middle of the day, that is about 30x the amount of blue light coming from your iphone screen. So as long as you go outside in the middle of the day you will reset your body clock and you don't need to worry too much about your screens. I just make sure that I have the brightness of my phone/tablet devices turned down in the evening (I use automatic brightness, so I don't normally need to do anything). Stress or changes in activity (including too little) will have a much greater effect on sleep patterns than a tiny amount of blue light in the evening.

[co-joe]

What is this outside you speak of? You mean the cockpit?