(Image: Paul McDevitt)
Such lightness with fear
WHEREVER there’s fear, there’s a market. No sooner had Feedback been enlightened about the menace of blue light from LED lamps (19 July) than a arrived from Interworks Unlimited, promoting the Konnet Care Vision Protective Shield with “new advanced Patent-Pending UV Blue Light Deflection Technology with fiber coating”. It warns of the perils of cataracts, nearsightedness, retinal damage and “lens mutations” due to ultraviolet light exposure.
What you really need to save your vision, it says, are shields that block 99.99 per cent of the ultraviolet light from smartphone and tablet…
