The Learn Hub

Light, biology
& better vision.

Science-led, honest writing on blue light, screens, sleep and how Mantis approaches lens design — no marketing myths.

Light, biology & the science of blue light

Light is more than illumination — it is one of nature's most powerful biological signals. Here's how it shapes human vision, sleep and focus.

Blue light itself is not the problem. The way humans are exposed to artificial digital light is the real issue.

If blue light is biologically necessary, why filter it at all? The answer lies in the difference between sunlight and screens.

Many brands claim extremely high blocking percentages while offering clear lenses. Here's how to separate scientific reality from marketing.

Answer one question about how you use screens and we will match you to the right Mantis lens.