SHINU Retro Round Glasses Frame Anti Blue Light Horn Rimmed Eyelasses-SH015 Imported composite lens non-polarized Lens width: 50 millimeters Bridge: 18 millimeters Arm: 143 millimeters You Could Choose Clear Lens or Anti Blue Light Clear Lens. Filter Effect: Polarized Block Most of the Blue Light 100% UV.(anti blue light lenses) All-round anti-blue lenses will absorb all the 380nm UV absorption, and then absorb 400-500nm high-energy blue light, block the harmful light outside the eyes, protecting the eyes from damage. While the 500-780nm of the dominant light to maintain the transmission rate of 90% or more, to ensure that vision as clear as possible. All-round anti-blue lenses are suitable for regular use of computers and phones. The people who often use the computers, phones and ipad touch the electronic screen for a long time, therefore they will be in the blue light for a long time. As a result, protection is essential. Many fashion people like wearing glasses frame, but it is nothing when in face of ultraviolet radiation or indoor computers and phones, so a pair of anti-blue lenses will be more secure. RX-compatible,So You Can Fit Our Frame at Any Optometrist with Your Personal Prescription.(clear lens)