Spheric CR39
Organic Single Vision, Bifocal or Progressive in stock lens or Rx
Refractive Index (Ne) : 1. 498
Specific Gravity: 1. 32
Dispersion Abbe : 58
Available Size: 70 / 65 / 60 / 55mm
Available Treatment: Hard Multi-Coat, Hard-Coat
Spheric CR39
Organic Single Vision, Bifocal or Progressive in stock lens or Rx
Refractive Index (N