3 Pack Oversize Square Design Reading Glasses for Women, Blue Light Blocking Reader : Health & Household

Description

Put the reading glasses on the blue light test paper. Irradiate the entire card with the blue light. Move your reading glasses. The part blocked by the reading glasses did not turn blue, the rest turns blue. Lens Inspection Machine Display: Compliant with multiple national defense blue lens standards.Light transmission 93.59%. It can effectively block harmful blue light with a wavelength of 415nm-455nm.

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