
I bought this pair and another pair called Blue Light Shield from LooJkirkaLooJ https://www.amazon.com/gp/product/B07919ZXDF/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc= 1 The Mind The 558 bridge model had a smaller frame and therefore fitted my 11 and 13 year olds' faces better. I checked them both by looking at the computer screen. It was clear that the Mind Bridge brand had a more yellowish hue when viewed. I'm naive and assume more yellow blocks more blue light. I returned it and bought another Mind Bridge for my other son. My kids love it which means they will wear it.

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