FREE SHPPING
On orders over $50 in select regions
BUYING GUIDE
1
Choose lensesand frame
2
Please provide your prescription data
3
Buy
4
Lens processingand assemb
5
Mailing
6
Arrived
Understand Your Prescription
| / | SPHERE(S) | CYLINDER(C) | AXIS(A) | PD(R+L) |
| (R/OD) | - 2.75 | - 1.00 | 174 | 60 |
| (L/OS) | - 1.75 | + 0.75 | 0 |
| / | SPHERE(S) | CYLINDER(C) |
| (R/OD) | - 2.75 | - 1.00 |
| (L/OS) | - 1.75 | + 0.75 |
| / | AXIS(A) | PD(R+L) |
| (R/OD) | 174 | 60 |
| (L/OS) | 0 |
Sphere: The sphere (SPH) on your prescription indicates the lens power you need to see clearly. A minus (-) symbol nextto this number means you're nearsighted, and a plus (+) symbol means the prescription is meant to correctfarsightedness.
Cylinder: The cylinder (CYL) number indicates the lens power needed to correct astigmatism. lf this column is blank, it means you don't have an astigmatism.
Axis: An axis number wil also be included if you have an astigmatism. This number shows the angle of the lens that shouldn't feature a cylinder power to correct your astigmatism.
Pupillary distance (PD)measures the distance between thecenters of your pupils and is used to center a prescription lensaccuratelyin your frames. Your optician will usually measureyour PD
LENS REFRACTIVE INDEX GUIDE
| Refractive index | Sphere / SPH | Cyclinder / CYL |
| 1.56 | -0.50 ~ -3.00 | -0.50 ~ -2.00 |
| 1.61 | -0.50 ~ -4.00 | -0.50 ~ -2.00 |
| 1.67 | -3.00 ~ -6.00 | -0.50 ~ -2.00 |
| 1.74 | -3.00 ~ -8.00 | -0.50 ~ -2.00 |
