Do these glasses block blue light? If so, do they block it completely?
1137154
As you may or may not know, these yellow lenses filter out blue light which enhances your ability to see better in dark or even white out situations where shadows may interfere with your vision. Even at night it reduces the glare of on-coming car headlights and virtually eliminates shadows. Snow skiers often use goggles with yellow lenses in snowy or white out conditions to filter out the shadows sonthey see better. I do not know if these lenses filter out 100% of the blue light spectrum.
1137155
I use them for night and rainy driving, and I think they're very good at brightening things up. I don't know if they block blue light completely, because I haven't anything to compare to. I just know they work for me and I have a pair in each vehicle.
1137156
All I can tell you they are nice (really brighten things up) on cloudy days. At night they cut down on light glare from headlights/street lights but they do darken shadowed area more then clear lens. In town at night they are ok but not on country roads at night,to dark.
1137157
I dont know. they appear to block some blues. I wear them for driving on overcast low light days.
1137158
I do not know what blue light is. I use them to reduce glare from car headlights and when driving in rsin or strong sunlight.
1137159
This is not a technically documented answer. They block significant amount of light. Essentially they remove more the half of the annoying glare light when driving, including from the old lights and the new blue eye killers.
77069
I use them for driving but I do not see why they could not be used for any glasses. I doubt you would see much difference using them for reading. Blue blockers are most effective when they filter out the blue in outdoor vision.
2178018
i don't have these glasses as they were lost but as far as i remember they were a bit darker on the top. they are nice glasses but they do filter the blue color out so when you look at a green signal it's not as bright.. (not a great thing for us older people)
2019453
It blocks up to 540nm light and the specification for the specific tint says that it blocks greater than 98% blue light. See page 14 of http://www.uvex.us/uploadedFiles/ProductConfiguration/ProductLiterature/Uvex_Lens_Tech_Update2011.pdf
1089130
Hi Lisa,I bought these glasses (Blue Blockers) a few yaers ago, both for myself and for my wife. Thses are designes as unisex and looks good on anyone. Remember, you should have glasses large enough to cover area around eyes to protect from the harmful UV rays of th sun, the skin under the eyes ai especially sensitive and pron to form wrinckles if not prperly protected.I say go ahhead and you will not regret.
1343669
Well, i do not know whether it really blocks out blue spectrum light, instead i'm sure it protect your eyes somehow...
691897
It blocks blue light regardless of it's source, artificial or natural. And I just got my UV meters out and for instance the total UV (UVA + UVB) measured was about 1.6mW/cm^2 and UVB alone measured 113 uW/cm^2. With the glasses placed over the sensors they measure 0.00mW/cm^2 and 4uW/cm^2 respectively. The UV meter also measures 4 indoors so I think the that is a calibration issue and it is really 0 for UVB. UVB is easily blocked by plastic even if not tinted. So I would say the answer is yes, it blocks UV and blue light.
2019452
I just received a pair today and used a color spectrum test image (and I'd tried others as well). Here's a link to it if you're interested. https://www.paleohacks.com/sleep/will-plain-red-or-orange-lenses-block-blue-light-for-sleep-17104 These were the only glasses that showed true blue blocking. I'm thrilled as I spend way too many hours under fluorescent lighting and in front of a computer screen. At my my age I couldn't care less whether they're stylish or not. I do like the S1933X though, better for comfort... lightweight.
488677
They have a slight amber tint that removes the white/bluish glare from the computer screen. I don't know if they would help with night vision or glare at all. They do help with the computer screen. I don't get as many headaches or tired eyes. The tiny is so slight it's not that noticeable.
95105
No. These glasses are extremely poor quality. I wore them once and returned them because they feel so plasticky and about to break. I recommend against them. Good luck
671266
These are wonderful especially for us glass wearers. They block the sun from all over, even from the sides. I bought a pair to keep in each car and my friend who is (was a long time ago) a red head and light complected and very sensitive to sun found these glasses to be great and he doesn't wear them over glasses. I'd give it a try and see what you think. I think you'll be happy. John
661804
No they dont. I put them on when facing the sun and it's like not wearing glasses at all. These don't offer protection from sun just from computers.
691899
I bought them to block out blue light from my computer and e-reader. They aren't tinted so I wouldn't recommend them as sunglasses.
1268189
Yes they are completely clear, not foggy or opaque. You can see right through to the other side.
542302
These are not like Blu Blockers. They are a very pale yellow tint that is great for staring at computers if you still need to view colors accurately, but Blu Blockers have a dark amber tint that cancels out more blue light (orange cancels out blue better than yellow because orange is complementary to blue) and provides enough tint to shade bright, outdoor light.
1469767
I wear my Gamma Ray glasses daily at work to reduce the blue light & glare coming from the two computer monitors I use. They also reduce the brightness of the fluorescent lights which gave me daily headaches. There appears to be some type of reflective coating on them but not like a mirror, I assume this is what blocks the blue light from killing my eyes & has eliminated my headaches. The yellow is not strong/dark.........just enough to be effective. They are not meant to replace sunglasses, more for indoor purpose. Overall I am impressed with them.
691900
From the computer yes (check out my review). I use them daily now when I'm just sitting and browsing or playing, they take a lot of the strain away and make it easier to go to sleep. They block solar rays, but they aren't really sunglasses, it will still be bright, but the danger from the rays will be gone.