Titanium Progressive Far and Near DualUse Reading Glasses Versatile vision across light levels: Progressive far and nearvision lenses support viewing from very low light indoors or predawn to the sunniest outdoor conditions, enabling continuous vision without switching glasses. Durable and lightweight construction: strength materials with a titanium frame provide antiwear and antidrop performance. Lenses are lightweight with HD resin, featuring optimized thickness for an ultrathin, sturdy profile. The design is scratchresistant, waterproof, and oilproof for reliable protection. Seamless focus with no interruptions: Titanium progressive dualuse lenses deliver smooth transitions between far and near focal points, eliminating image jumping and the hassle of changing glasses. Blue light protection for screen use: When using phones, computers, or tablets, these glasses block up to 90% of blue light, helping reduce eye strain and protect the corneas from dryness associated with screen exposure. Use scenarios: Reading in dim indoor environments or predawn light. Working on computers, tablets, or smartphones to reduce eye strain. Reading outdoors in bright sunlight.