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Background

'Blue‐light filtering', or'blue‐light blocking', spectacle lenses filter ultraviolet radiation and varying portions of short‐wavelength visible light from reaching the eye. Various blue‐light filtering lenses are commercially available. Some claims exist that they can improve visual performance with digital device use, provide retinal protection, and promote sleep quality. We investigated clinical trial evidence for these suggested effects, and considered any potential adverse effects.

Objectives

To assess the effects of blue‐light filtering lenses compared with non‐blue‐light filtering lenses, for improving visual performance, providing macular protection, and improving sleep quality in adults.