Gabery Blue Light Cut Glasses, Non-Prescription I'm selling these because I bought them but don't use them. [Recommended by Eye Clinic Doctors] Recommended by current doctors working at eye clinics. Effective for protecting eyes after eyelid ptosis surgery and for care during downtime, it can also be used as a fashion item and is an active item in the medical field. [Natural Lenses Close to the Naked Eye] General blue light cut lenses tend to yellow as the cut rate increases, but this product achieves a natural field of vision with reduced yellowing while reducing eye strain by setting the blue light cut rate to 45%. A natural field of vision that suppresses color distortion allows for long hours of work. [Stretch Fit Specification] A stretch structure that combines highly elastic TR90 material and spring hinges that open and close softly with the power of a spring, it fits flexibly to the width and contours of the face. It is hard to slip and provides a comfortable fit even after long hours of wear. [Excellent Durability] High-durability frame tested domestically. The high-durability frame made of nylon resin x beryllium copper material, also used in sports sunglasses, prevents breakage and deformation, allowing you to use it for a long time.