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THE CLEAR VISION GUIDE

Do blue-light glasses help with screen strain?

What a Cochrane review does—and does not—tell us about blue-light filtering lenses.

Clear Lens editorial · Source-based explainer ·

Start with the evidence

A 2023 Cochrane review found that blue-light filtering lenses may not reduce short-term computer-related eye strain compared with ordinary lenses. Evidence about sleep was uncertain; retinal protection was not established by the included trials.

Ask what the upgrade promises

Treat a blue-light filter as a specific feature, not proof of medical benefit. If screens feel uncomfortable, discuss your prescription, working distance and symptoms with an eye-care professional instead of relying on a filter alone.

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