Ultra-light 9g Retro Small Frame Pure Titanium Progressive Photochromic Glasses

Ultra-light 9g Retro Small Frame Pure Titanium Progressive Photochromic Glasses Intelligent Vision, Engineered for Every Light 🔥 Triple-Adaptive Vision System AI-Optimized Progressive Lenses Seamless 3-Zone Focus: Top (distance) → Intermediate (devices) → Near (reading) with 16mm wider corridor vs. standard progressives—eliminates swim effect & neck strain. Digital Blue Light Filter: Embedded in all zones, blocking ≥40% harmful blue spectrum from screens. Smart Photochromic Reactivity Lightning Transition (20 sec): Transforms from clear (indoor) to 85% UV400 dark tint (outdoor) under direct sunlight. Adapts to UV intensity—not temperature—for reliable performance. All-Climate Durability: Nano-coated lens surfaces resist fog, scratches, and saltwater corrosion. Pure Titanium Endurance Aircraft-Grade Frame (9g): Hollow-core titanium tubing reduces weight by 62% vs. acetate, yet withstands 15kg pressure—ideal for active lifestyles. Hypoallergenic Integrity: ISO 1099