fyn turtle blue light glassesThe Fyn frame takes the most classic designs of the models that made the Blues Brothers by refining the frame to be ever so fine with metal detailing on the temple. They offer all the advantages of square glasses, notably a large visual field. To better protect your eyes, these glasses are equipped with anti blue light lenses. Blue light emitted from screens such as computers, tablets, phones, and TVs can cause headaches, dry eyes, impaired vision,