Lens Guide
单光镜片示意图

Single Vision:

Single vision lenses are standard prescription eyeglasses.
Single vision lenses provide only one type of vision correction, with the same prescription strength across the entire lens. They can correct nearsightedness, farsightedness, or astigmatism. This is the most common type of lens.
• Either far • Or near
But ❌ not both at the same time.
👉 Like a camera with a fixed-focus lens.

渐进多焦点镜片示意图

Progressive:

Progressive lenses offer the closest thing to natural vision you can get in a pair of prescription glasses.They provide a smooth transition from near to far vision, incorporating all intermediate corrections to ensure clear sight at every distance.
• Top: Distance vision
• Middle: Computer / intermediate
• Bottom: Near / reading

The near-vision support comes from the ADD (Addition power).
👉 Like a camera lens with smooth zoom.

双光镜片示意图

Bifocal:

A bifocal lens means a lens with two credits of focus. A small portion of the eyeglasses lens is reserved for the near-vision correction. The rest of the lens is usually a distance correction.
• Top: Distance
• Bottom: Near (reading)

✔ Clear for far + near
❌ No smooth intermediate (computer) zone
❌ Visible line between the two parts👉 Like a camera with two fixed focal lengths.

阅读镜片示意图

Reading:

Reading lenses are prescription glasses designed for reading.
They provide optimal vision for reading or other close-up tasks, suitable for objects at reading distances ranging from 16 inches (approximately 40 cm) to 2 inches (approximately 5 cm).
If you notice your vision changing over time, struggle to focus on small print, or simply want to enhance eye comfort while reading, reading lenses can be highly beneficial.

Sierra

Product form

Champagne Cat Eye Eyeglasses

$12.00 $6.95

$10 OFF Orders over $69
Coupons

*A valid prescription is required for this product. Orders without a verified prescription will not be processed.

    Select Lens and Purchase
      PrescriptionPrescription
      • Single vision
      • Progressive
      • Non-polarized
      • Polarized
      • Reading
      • Bifocal
        Shipping & Returns
      • 30-Day Returns & Exchanges
      • 365-Day Quality Warranty
      • Free Shipping Over $79
      • Worry-Free Delivery

      Specifications

      • SKU: C2020-04
      • Shape: Cat Eye
      • Size: Wide
      • Material: TR
      • Rim: Full Rim
      • Progressive: YES
      • Spring Hinge: Yes
      • Adjustable Nose Pad: No
      • Weight: 26.9g
      • Frame Width: 133.5mm
      • Bridge Fit: 18mm
      • Lens Width: 52mm
      • Lens Height: 39.7mm
      • Temple Length: 147mm

      Specifications

      • SKU: C2020-04
      • Shape: Cat Eye
      • Size: Wide
      • Material: TR
      • Read more

      Description

      Understated and polished, the Sierra champagne frame highlights the elegance of a classic, sharp cat-eye. The soft champagne hue adds warmth without overpowering, making it an easy choice for refined, everyday styling with a touch of sophistication.

      Sierra Size Wide
      product spec click Lens Width 52 mm 2.05"
      product spec click Bridge 18 mm 0.71"
      product spec click Temple 147 mm 5.79"
      product spec click Width 133.5 mm 5.26"
      product spec click Lens Height 39.7 mm 1.56"
      Show in Inches Show in MM
      Size Width (mm)
      S (Narrow) 125-128mm
      M (Medium) 129-132mm
      L (Wide) 133-136mm
      XL (Extra Wide) 137-140mm

      We suggest you measure your frame dimensions to make sure your new glasses correctly fit your face.

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