Could You Help Me To Change Prescription Lens?
As you may know, nowadays more and more clients prefer to buy PRESCRIPTION LENS on line rather than physical store. Because shopping on line is more efficient and convenient. Do you agree with me? But there also will lots of clients will ask so how can I get a prescription lens on line? What should I provide? Don't worry, follow me, we will help you to do that.
1. Find a professional online shop with glasses.
2. You need a spectacle prescription form after regular hospital examination.
The optometry charging standards of different levels of hospitals in different regions are not uniform, usually ranging from 10 to 50 Chinese Yuan in China. The prescription order for glasses needs to be combined with computer optometry and manual insertion optometry, and the degree obtained after walking try-on. It is recommended to go to a regular hospital Do optometry.
3. After getting a complete spectacle prescription form, give it to the customer service of that professional online shop.
Here we will popularize some professional terms in below. Because when we get that spectacle prescription form, we understand nothing, only the lens degree. Right? So here we'd like to introduce the various terms and abbreviations that will appear in the prescription sheet.
DV——Distance Visual
NV——Nigh Visual
R、RE——Right Eye
L、LE——Left Eye
BE——Both Eye
OD（Latin）——Oculus Dexter
OS（Latin）——Oculus Sinister
OU（Latin）——Oculus Unati
V——Vision
S、Sph——Spherical
C、Cyl——Cylindrical
X、Ax——Axls
D——Diopter
PD——Pupillary Distance
ADD——Addition
CL——Contact lens
If you don’t need to change the degree of the glasses you are wearing, you can also send the glasses to the online glasses shop, let them know the degree after testing, and then place an order, but you need to have a spare glasses.
4. Choose a suitable pair of glasses frame: use the original glasses as a reference.
Each glasses will have size, The size of the frame determines the size of the lens, and the PD data will also change, so it is best to send the frame to the online shop. If the size data has been worn out, it is recommended that you use a ruler to measure the comfortable glasses you have worn before, and record the total width of the frame and the inner width of the frame. The inner width of the frame can be adjusted by plus or minus 5mm according to the actual wearing tightness.
5. Choose the right spectacle lens:
Usually with the same power, the higher the refractive index, the thinner the lens. Within 300 degrees, you can choose 1.50 or 1.56, within degrees 300-500: Can choose 1.56- or 1.60. Within 500-800 degrees can choose 1.67, and above 800 degrees can choose 170, 1.74. Just a suggestion, you can refer to the optician’s suggestion for more.
