Have you always wanted glasses, but you just have sharp eyesight and no prescriptions? Tenby glasses will suit you and help you stay that way. This is because they have lenses that filter out harmful ultraviolet and blueviolet light and some of the blue light. Silver metal and black halfrims will suit both you and your more masculine half.Transparent slides that block some of the blue lightNonprescription glassesThey will help you work on your mobile phone, computer and watch TV