Lens Technology
Standard Lens Options
Single Vision
- Single Focus Lens
- Great Option for Distance, Near or Computer Viewing Needs
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Bi-Focal
- Lens with 2 Distinct Focal lengths
- Ideal for Combining Distance and Near Vision, Computer and Near, or Distance and Intermediate
- Bottom Segment available in Round or Flat-Top Design
- Segments are available in 22mm, 25mm, 28mm, 35mm, and 45mm sizes
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Tri-Focal
- Lens with 3 Distinct Focal lengths
- Good General Purpose Lens
- Focal lengths for Distance, Intermediate and Near
- Most Commonly available in 7x28mm and 8x35mm segment sizes
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Progressive Lenses
- Commonly Known as "No Lines" or "Varilux"
- Very Good General Purpose Lens
- Focal lengths for Distance, Intermediate and Near
- Seamless, smooth progression from the Distance to Near zones
Visit our Specials page for great deals on Progressive lens Package Deals!
Lens Materials
- CR-39:1.50 Index Standard Plastic
- Superior Optical Quality and Inexpensive Material
- Polycarbonate:1.59 Index
- Extremely Durable and Lightweight
- 1.60 High Index
- Thinner Lens Profile and Lighter Weight
- Good Optical Quality
- More Expensive Than Poly
- 1.67 High Index
- 10% Thinnner Than 1.60 and Lighter
- More Expensive
- 1.74 High Index
- Industry Leader in Thin Plastic
- 10% Thinner Than 1.67
- Premium Priced