Karla 8138
Karla 8138

Karla 8138

SKU: 8138T34
Product type: Computer Glasses
$39.99
Color: Transparent
Select Lenses
Frame Only
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Prescription
  • Blue Light Blocking
  • Progressive
  • Reading
  • Photochromic Lenses
Karla 8138
$39.99
$0.00 $39.99
Color: Transparent
Karla 8138
Karla 8138
$39.99
Specification
      Frame size
      • Frame width: 135 mm
      • Lens width: 48 mm
      • Bridge: 24 mm
      • Temple length: 145 mm
      • Lens height: 42 mm

      Anti Blue Light -- Cyxus computer glasses Aarin, anti harmful blue ray, provide all-day protection, against the detrimental effect high energy visible blue light and UV400.
      PC Lens -- Glasses lenses are high-end space PC lens with Super hydrophobic coating technology , shock resistant and water proof, dust free and easy to clean.
      Anti Glare Lens -- No color difference, bring you good visual experience.

      Reduce Eye Strain -- Cyxus blue light filter eyeglasses can remove eye fatigue, redness, and dryness.
      Better Sleep -- Cyxus eyeglass can reduce eyestrain and headache, so you can enjoy a restful deeper sleep.
      Headache Relief -- Cyxus blue-light filtering glasses Aarin will keep you healthy by blocking harmful blue light from digital screens while letting in all other beneficial light.
      UV Protection -- Anti-Blu-ray Lenses utilize special U.S. substrate processing technology to protect the eyes from ultraviolet radiation and block UV400. 

      Click to see how to test Cyxus blue light filter glasses .


      Prescription Process

      Lens Thickness and Refractive Index

      The thickness of the lens is related to the refractive index. The higher the refractive index, the thinner the lens. You can choose the lens that is more suitable for you according to your own habits and preferences.

      lense thickness

      How to Choose The  Index

      If you don't know how to choose the Refractive Index,you can refer to these informations,and you can get the most comfortable prescription glasses.

      Lenses index

      How to Read Your Prescription

       1.What does my prescription (Rx) mean

       ‘+’ or ‘-‘

       ‘+’ – Shows if you are long sighted (longsightedness)

       ‘-‘ – Shows if you are short sighted (shortsightedness)

       If your Sphere (SPH) is ‘+’,you are farsighted,please tell us that after you put on the glasses, do you see further clearly or see near clearly compared with not  wearing glasses.

       Each row of an Rx has three main sections: Sphere (SPH), Cylinder (CYL), and AXIS. The SPH section corrects nearsighted or farsighted vision. The CYL and AXIS sections correct  an astigmatism.

       There may also be a fourth section on the Rx , NV-ADD (for Near Vision-Reading ADDition), which could be used to order a pair of bifocal or progressive glasses with a close-up   vision section in the bottom part of the lens.

       The SPH, CYL, and NV-ADD numbers will always have a plus or minus sign.

       

      How to Measure Your PD

         PD stands for Pupillary Distance, which is the measurement from the center of one pupil to the center of the other. Your PD is an important factor and tells you where you look through the lens of your glasses and should be as accurate as possible. For people with strong prescription, this is especially important. You can normally find your PD on your prescription. Generally speaking, the PD numbers for adults stays the same. The average PD range for adults is 57-72 mm and for kids is about 43-58 mm.

       

       Your pupillary distance (PD) is the measurement of the distance between your pupils.

      pupillary distance (PD) | Cyxus

       This is needed for the manufacturer of the eyeglasses to know where to place the optical center on each lens, so you can see well with the glasses.

       

       

      We provide shipping and return service for all orders on cyxus.com. You will enjoy the free standard shipping on product orders over $50. All original packaging will be included (brochure, case, cloth, test card).

      Please click Shipping&Returns to view the full shipping & return policy


      365-Day Quality Guarantee
      A 365-day Quality Guarantee is provided, covering manufacturing defects, excluding damage from accidents, neglect, or improper care.

      

      14-Day Exchanges & Returns
      Products can be returned, exchanged, or refunded within 14 days.

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