Shamir 1.50 Glacier Plus BlueZero II Lenses by The NevermoreShamir 1. 50 Glacier Plus BlueZero II Lenses by The Nevermore description Shamir 1. 50 Glacier Plus BlueZero II lenses feature an advanced lens material with integrated blue violet light and UV protection, designed to reduce exposure to high energy visible light without altering natural color perception. The BlueZero II technology selectively absorbs harmful blue violet wavelengths while allowing beneficial blue light to pass through, maintaining