Not all exposure to blue light is bad. Blue light from the sun, for example, helps you feel more awake in the morning. The main culprit is the blue light emitted from LED screens, especially at night.

It’s best not to wear orange-tinted lenses when you’re not actively staring at a screen. As they significantly alter your color perception, they can negatively affect your vision when you’re doing other things, like driving.

If there isn’t a significant change, it’s possible your glasses may not be blocking blue light.

Alternatively, sometimes this test is done as a blue and black circle. If so, search “Blue and Black Circle Test” to find a black circle with a blue inner circle inside.

In the case of the blue and black circle test, you will now see one black circle (with no inner blue circle). [7] X Research source If you still see blue and black squares or a blue and black circle, your glasses may not be super effective at blocking blue light.

If the color reflecting off your glasses is purple or violet, they may not be protecting you from blue light.