How do I know if my glasses prescription has a blue light filter?
How do I know if my glasses prescription has a blue light filter?
Use The Lens Reflection Test If it's blue light that's reflecting off them then you know they are filtering some blue light. If the reflection is violet or purple you know that blue light probably isn't being filtered effectively. This is a good basic at home method to test blue light glasses.Feb 27, 2020
How can you tell if your glasses are blue light blocking?
Test Blue Light Glasses With an Image When looking at the two squares on a standard screen, the left one should be black, and the other should be blue. If you are wearing high-quality, functioning blue light blocking glasses, then they should look nearly identical.Aug 4, 2020
How do I identify a blue cut lens?
2. Use The Lens Reflection Test. A good test at home is to pop your computer glasses on and see what colour the light is that is reflecting off the lenses. If it's blue light that's reflecting off them then you know they are filtering some blue light.Feb 27, 2020