Blue-light lenses
Blue-light lenses filter part of the blue light from screens and daylight. Some people like the slightly warmer view, but they are a comfort preference, not a medical treatment.
What the filter does
A blue-light lens reduces how much of the blue end of visible light passes through. The effect is mild: whites can look slightly warmer and you may notice a faint reflection on the lens surface. It is separate from an anti-reflective coating, which reduces glare from lights.
What it does not do
Research has not shown that blue-light lenses prevent eye disease or reliably reduce digital eye strain. We offer them for people who prefer them, not as treatment, and we do not promise better sleep.
Habits that help at a screen
- Look at something far away for a few seconds every twenty minutes.
- Blink fully; screen work makes us blink less.
- Set the screen a little below eye level and reduce reflections from windows.
- Keep your prescription up to date for your working distance.
Who might like them
Some people simply prefer the slightly warmer, calmer look of a screen through a blue-light lens, especially in the evening. If that is you, it is a reasonable choice for an everyday clear pair. If you are buying them to fix headaches or tired eyes, book an eye test first; an outdated prescription is a far more common cause.
Related guides
Single vision lenses
Choosing a prescription for desk work.
Lenses and coatings
Index, coatings and thickness.
Rectangle glasses
A steady shape for desk work.
Blue-light questions
Can I wear blue-light lenses all day?
Yes. They work as everyday clear lenses with your prescription.
Do blue-light lenses change colours?
Slightly. Whites can look a touch warmer, and most people stop noticing within a day.
Can I get them without a prescription?
Yes, choose non-prescription in the lens step if you only want the filter.
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