• interpupillary distance(PD)

• left and right eyes' AXIS

• SPH: the degree of myopia or hyperopia




• CYL: astigmatism




• AXIS: astigmatism direction




• PD : interpupillary distance




• ADD: for progressive lens

No astigmatism:

R(OD):-2.75

L(OS):-1.75

PD:60

have astigmatism:

R(OD):-1.75 CYL:-1 axis:174

L(OS):-1.75 CYL:0 AXIS:0

PD:60

• 1. Add your favorite frames to your shopping cart - (CCspace store)



• 
  2. Select your lens thickness according to your prescription
  
  and add myopia lenses to your shopping cart.


• 
  3. Pay in the shopping cart,



• 4. Provide your prescription as following

  

  
  
  

 

 

Pupil distance ( PD )

 

Pupil: refers to the two head, the distance between the two. if optometry time forgot to record, according to the below measurement (friends family or a person, accurate to the millimetre ruler)

 

 

 

Operation method:

 

1. two people face to face. Distance of 30 cm, measured horizontally in front of 5 meters or meters away from a fixed object, the researchers measured the horizontal ruler attached to the root of the nose.

 

2. the measurement of the ruler zero scale is aligned with the right eye pupil center (or the right pupil edge), the eye pupil center (or left eye pupil edge) corresponding to the ruler scale observation, and record the data.

 

3. repeat step 2, measure 3-4 times. take the acerage, so the the conventional pupil distance test can be. the pupil distance if the acerage adult male is between 60-73 mm, and the distance between the adult female pupils is between 53-68 mm.

 

 

 

 

 

 

 

 

Warm tip: configuration glasses belong to product customization,the shop according to the user's optometry prescription to provide various photometric lenses, so consumers must provide true and accurate data, in order to ensure the quality of glasses configuration, if the false configuration data is provided, the shop not negative any responsibility. thank you for understanding!