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Quantity
1
Description
What is blue light?
Blue light has a very short wavelength, and so produces a higher amount of energy. Studies suggest that, over time, exposure to the blue end of the light spectrum could cause serious long-term damage to your eyes...
Reviews
5.0
1 rating
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I have used these for quite a while. Every time I feel a tension headache coming on I throw them on and they definitely don’t take it away but they alleviate some of the strain on my eyes.
