Does anyone have any information on the "essential blue series" that is included in all there new lens. Is it something that is built into the lens? What wave lengths does it actually block? Any information on how they designed this? I was under the impression that they just took out the darkening effect of transitions and repackaged it as the new "blue series" that is now in their lens. Based on a pamphlet I received form Essilor the Essential Ble Series and non activated transitions block the same amount of harmful blue light.
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