Shamir 1.50 Glacier Plus Transition GenS Lenses by The NevermoreShamir 1. 50 Glacier Plus Transition GenS Lenses by The Nevermore description Shamir 1. 50 Glacier Plus Transition GenS lenses are engineered with advanced photochromic technology integrated directly into the lens material, allowing the lenses to remain clear indoors and darken naturally when exposed to sunlight. This ensures smooth visual adaptation during daily transitions between indoor and outdoor environments. The lenses are treated with the