Blue-light glasses should do something measurable and still let the world look like itself.
We looked at how much light they cut in the blue band, and at how badly they shift the color of a page and a face. A strong cut that paints the room amber is a trade you should know you are making.
Cutoff and color
Lenses that block a meaningful slice of blue light change what you see. Clear lenses with a tiny coating often change very little, including the light. The honest choice is a tint you notice and a claim that matches it, or no claim at all.
- Try them on a screen and on a printed page.
- Notice faces. If everyone looks ill, the tint is heavy.
- A fit that you will keep on past the first hour.
- No promise that a pale lens fixes sleep by itself.
If the lens does not change the light, it is not blocking much of it.
In the evening
Dimming the screen and leaving the bright overhead off does more than a pale pair of glasses. Use the glasses as a reminder and a filter, not as the whole routine.
Buy the tint you can stand to wear. An unused pair blocks nothing.
