Blue Light Blocking Lenses (Not For Prescription)

[NYBK Online Prescription Lens Services]  The Blue Light blocking(screen light protective) with anti-reflective coating lenses. Options are available for both non-prescription and prescription lenses. [Precautions: Non-Prescription Lenses]  All non-prescription lenses are expendable. It would be difficult to accept return or exchange for any reason. NYBK Warranty does not cover damages from normal wear and tear, improper use or user negligence. Please consider carefully before you purchase our frame with the lens service. Shipping lenses usually take 4-7 business days depending on the region you live in. [Precautions: Prescription Lenses] The prescription lenses are adjusted only for customers' personal spectacles degrees. It would be difficult to accept return or exchange for any reason. Please consider carefully before you purchase our frame with the prescription service. Making custom lenses may take 1-2 business days and shipping usually takes 4-7 business days depending on the region you live in. [How to order your prescription lenses] Please refer to the below prescription degree table for the compression level suggested by our opticians.  *For customers with prescription degree lower than -5.25 may require additional cost for more compression options. If you are not sure which option to choose, please contact us for more details. [Example] OD: sphere -0.50 / cylinder -0.25 / axis 170 OS: sphere -0.50 / cylinder -0.50 / axis 155 PD: 31.5/33 *OD: Oculus Dexter (Right Eye) *OS: Oculus Sinister (Left Eye) *PD: Pupil Distance