Ocushield Anti Blue Light Tempered Glass Screen Protector of iPhone 7 & 8 – Blocks Blue Light, Prevents Eye Strain & Helps You Sleep Better, 9H Hardness & Case Friendly

It was a little tricky to install the screen, but I got it done. Prior to having this shield, my eyes were always tired after being on my smartphone for a prolonged time. I've had the screen for several weeks now, and have noticed that my eye strain is no longer an issue after I've been on the iPhone for any length of time. I highly recommend installing this screen if you feel that your eyes are strained.

The blue light technology is legit on this screen protector! If I’m on my phone within an hour before I go to bed, I sleep great and get a good night of sleep!

I assume this shield blocks blue light (but I haven’t measured it) and that’s the only reason I would give it 3 stars. The shield was a little difficult to apply (it was not lined up in the application guards evenly) but I was able to remove it and reapply without any major problems. Unfortunately, there is still screen showing through on the edges and it has broken only after a couple months- once in the top corner, a (pretty sizable) piece chipped off and there’s a crack through the middle of the screen. Although those are likely attributed to me, I do wish it was a bit stronger. What I like the least of this shield is the constant purple glare my phone now gives off constantly. I would not buy this again.

It was important to me to have the blue light protection on the screen protector for my kids. That’s why I bought this.

When outside in the sun, the entire screen turns blue and you can't see anything. It's glare could mimic a mirror. When inside or in the shade, the screen just has a blue tint.

So could read at night & not mess up my sleep

Great blue light blocker

I need this so keeping it, but it was supposed to work for an iphone 8 and it's too small! I now have 1/4" of border all around. Didn't realize when it was in its cardboard holder that it wasn't going to fit. Not cool, it said it was appropriate for my phone. It was not.

Me gustó mucho el producto. Al principio sí notas un cambio en la pantalla, pero a los pocos días te acostumbras y no notas la diferencia de antes. Sí he sentido que mis ojos ya no están tan irritados al final del día.

The idea seems great, also I really do think the filter works and my eyes feel less tired with it(much more so than the iPhone night filter). What my problem with it is, it started cracking at the edges in the first week and got a million scratches from what seem like thin air. I rarely drop my phone and it’s always kept in a case. I usually have it in deep pockets of a fleecy hoodies with nothing else inside, especially so I avoid the aforementioned, as you do with your expensive gadgets. I left a comment once on the brand’s Instagram but it was promptly deleted, or it disappeared on its own if not deleted. Which kind of leaves you with a bitter taste somewhat. Otherwise both me and my partner work on laptops and I was raving about these protectors like they’re the holy grail but due to quality and customer service have now changed my mind. I don’t think I’d be spending that amount of money on screen protectors again.

Before I start, I am not in any way affiliated with this company, I'm just a customer who chanced upon the product. I have eyes that do not like bright lights especially blue light. Signs and text that are lit blue at a distance appear as a blur to me (worse if the source light is an LED) while all other colours appear very sharp (I do not require prescription lenses to see clearly at any distance although a very mild correction does perceivably benefit me at all distances.) When the world shifted from CCFL (fluourescent backlit with UV (invisible) source light) to LED backlighting (blue LED with a yellow phosphor to absorb that blue light and fluouresce yellow) I found myself with unbearable eye fatigue whenever looking at a white LED backlit display of any kind. Some research later I discovered that is because the white light emitted by white LEDs is the product of a mix of blue and yellow photons only, it is not a full spectrum white like sunlight or RGB light, it has a massive spike of blue light in the 450nm wavelength and dropping off sharply but still present either side of that. This is the exact point of the visible spectrum that causes people with weak eyes like me to experience fatigue when we expose our retinas to that short wavelength of light due to its high energy. Other display technologies such as OLED/AMOLED have base light sources of a mix of red, green and blue LEDs in order to produce white, this results in a balanced and less optically obnoxious white that my eyes (and i'm sure many others) have a much easier time dealing with. (there is the PWM issue with OLEDs but I won't cover that here as it is not relevant) Why not just always use old CCFL monitors, and OLED devices and non white LED backlit displays then? In today's world that is impossible, the majority of displays we interact with on a daily bases are lit by white LEDs and produce other colours purely by filtration of that light, therefore the harsh light must be attenuated or avoided entirely for me if I want to keep my eyes in good health. Night modes on displays apply filtration to the base light, yes they can make your screen go all warm and amber by bathing the image in warm colours, but it does not and cannot stop a bunch of those blue photons from hammering into your eyes as the material in an LCD allows them to pass freely (it has to in order to display colours accurately). This product, I cannot tell you to what precision it attenuates the light, but it objectively does so. I can view my iphone 8's display which used to fatigue my eyes in a matter of a few minutes of use for normal use now without feeling that anywhere near as much. It was worth the money for me it has turned reliance on OLED mobile devices into that potentially not being the case. The only negatives I can state are definitely par for the course with this product, inherent to it's purpose and should not be regarded as flaws. They are as follows. Blue/Mauve tint to the device screen when tilted any direction but straight at you. Slight (and I do mean slight, slighter than night shift on less than a quarter of the way) yellow tint to the image, the marketing material stating that it doesn't affect the image at all is not 100% accurate (I expected this). Overall, good work on creating a product to address this issue, while I believe the general population does not experience fatigue to the point of going out and seeking a product like this, I do believe they could benefit from its use.

Unfortunately this didn’t work for me - it’s a good quality screen protector and I can see it’s helpful when you get the angle just right, but I wasn’t expecting the blue reflective sheen on the outer layer that catches the light when you aren’t looking at your phone dead on, and for me this triggered migraine issues / made me feel nauseous. I got this protector partly as I thought it might help with my migraines, as I get v sensitive to light / screens with them, but unfortunately it does the opposite! If you don’t have those issues and are just worried about exposure to blue light then I’m sure it will be fine!

I’ve literally only just put this protector on my phone but I can tell a difference immediately. It’s clearer and kinder on my eyes even without my glasses which have the blue filter within them too. No compromise on the colours, if anything it it’s better. I was dubious at paying so much, but opening the package, with the position guide and cleaning items I could tell it was superior to previous products. Absolutely love this and I’ve bought one for my sons IPad too as he doesn’t wear glasses with the protection.