How to read your Prescription?

To order eyeglasses, you need to enter your prescription.

The details of your prescription have been written by your eye specialist on a document. The prescription format has been standardized internationally in order to give easy access to the information wherever you live in the world.

However, prescriptions might look different between opticians depending whether it is written in a table, by hand, with or without coma...Therefore, we will explain you how to read and understand your prescription easily.

Any problem to enter your prescription? just place your order, Enter 0 in the prescription fields and Send us your document by email!

First of all, have a quick look at "How to Read your Prescription?". Then, click on the following links for more details:

• You have Myopia or Hyperopia, your prescription is written as follows:

or

• You have Astigmatism (and possibly added Myopia or Hyperopia), your prescription is written as follows:
• You have Presbyopia (and possibly added Myopia or Hyperopia or Astigmatism), your prescription is written as follows:

How to Read your Prescription?

As explained below,the two prescriptions look similar but they are written differently. Therefore, please have a look at the general rules to write and to read your prescription.

• The numbers can be written with or without coma.
  • - 1.5 may be written as -150
  • +2.5 may be written as +250
• The value Axe may be followed by °
• Axe = 140 is the same as Axe = 140°
• Plano means Zero. Plano = 0 = no prescription
• When there are no numbers in the filed, it means Zero

• OD means Right Eye
• OG means Left Eye
• ODG means Right Eye and Left Eye have the same prescription. For instance, ODG -100 means OD -100 and OG -100

• Sph determines the strength of the lens so the Myopia value ( - sign) or Hyperopia (+ sign)
• Cyl and Axe are the Astigmatism values (Power and Steering)
• Add is the Presbyopia value

Only one number after OD or OG : Myopia or Hyperopia

or

ODG means Right Eye and Left Eye have the same prescription (see example on the right picture).In this case, it is a basic prescription for long distance vision.

• Interpretation: If 1 number only is written after OD or OG (or ODG), il relates to Myopia (- sign) or Hyperopia (+ sign), therefore related to the value Sph (Sphere) as written in -1.00 for OD and -0.50 for OG in the prescription fields as shown below:

Several numbers after OD and OG : Myopia , Hyperopia and Astigmatism

In this case, Myopia or Hyperopia is added to Astigmatism. Therefore, it relates to a basic prescription for long distance vision.

Interpretation

• The data written between brackets relates to the value Cyl and Axe in the table.
• It may have one "to" between the two numbers: +025 to 140. In this case, +025 is Cyl and 140 is Axe.
• To recognize Cyl and Axe, you must look at the last number. Cyl always ends with "00, "25" or "50" (+100 or -325 for instance) whereas Axe is between 0 and 180 or finish with all possible numbers.
• The data written between brackets (ie. -100 and -050) relate to Sph as explained earlier.
• When entering your prescription, you only need to enter:
• For OD: -1.00 in the column Sph, +0.25 in the column Cyl and 140 in the column Axe
• For OG: -050 in the column Sph (the other value are not written, therefore equal to Zero)

ADD or VP sign (short distance), you have Presbyopia

If you have Presbyopia, the value Add(for addition) or VP (for short distance) is written on your prescription. ADD or VP are always positive values and relates to short distance vision.

During your order, you must enter:

• The values Sph, Cyl and Axe as explained earlier.
• The values Add must be written in the column Add in the prescription field.