Anti Blue Light Screen Protector (3 Pack) for 24 Inches Widescreen Desktop Monitor. Filter out Blue Light and relieve computer eye strain to help you sleep better

I couldn't get blue-blocking protection on my prescription eyeglasses anymore (wasn't compatible with anti-scratch coating) so I tried this screen protector on my home, office, and laptop screens. I no longer get "visual strokes" or eyestrain even after heavy use of my computers. So, although that's not "proof" that these screens block the offending wavelengths, I will not spend any time looking at a monitor that DOESN'T have one.The only downside is that it's difficult to apply without resulting in at least a few small bubbles.

It is a good screen, Help my eyes alot! only problem is that I had to cut it to make it fit perfect. Also you have to work for awhile to get rid of the bubbles that form after you put it on. I guess that is normal?

This does reduce the blue light, but the adhesive screen protectors leave bubbles all over the screen which makes viewing very undesirable. I would return them, but I already removed the sticky part and stuck them to the screens. Buyer beware this product is not made well and does not come with good installation tools. Just including an application squeegee would have made this a much better product.

The instructions were simple...too simple. So, I'll try help a bit.1. You may have to cut it to size: use a box cutter type blade and a straight edge. Make it 1/16" smaller.2. The material is tough, but soft. It will scratch or absorb a tiny dirt particle, or anything easily, so only cut/work on a very clean surface.3. If you try to snap it on, it will look terrible! Bubbles everywhere, and they don't come out easily, if at all.4. Know which side is #1 and #2. My first time I cut off the number stickers while trimming(doh!), but I lucked out.5. Clean your screen with a clean cloth and alcohol -- Do it twice -- Let it dry.6. Before removing protective film #1, check that it fits well by placing it on the screen as a test run.7. When your ready, remove film #1, and put one edge in against one side of your screen without laying it down.8. Put a gentle arch/bend in the protector and start to apply it about 1/2" at a time as you gently sweep up and down with your finger to attach it while keeping bubbles from forming -- see a bubble? Back up a little and start down again.9. As you get to the final several inches, hold tightly, or it might slip away and pop onto the screen. Not the end of the world, but it may leave a few bubbles along the edge.10. Once it's down, look it over really well. Do any fixes, cleaning or starting over before you remove film #2.11. That should do it! If you F it up, you probably bought more than one in your package, so you can start over from scratch -- or without scratch -- pun intended.12. Good luck. You can do it.

First, packaging is outstanding! I don't need all three light filters at present but the package is perfect to keep them FLAT and safe for another time is wonderful.Second, the instructions were easy to follow. Very few "bubbles" which were easily removed with the plastic tool.Third, and most important, the size promised is the size delivered. (Not so with my earlier returned filter.)A great product

Not very effective for me, and hard to install

Does the job. No eye strain now.

my daughter works 9 hrs. a day on a computer and she says her eyes feel so much better, you will be glad you got them !!