Prescription Eyeglasses Help Page:


  • Is an Eyeglass prescription the same as a Contact Lens prescription?
  • What is a P.D. Measurement & Why is it needed?
  • Can you obtain the Prescription from the doctor for me?
  • Why would I submit the patients date of birth and eye doctor's information?
  • How do I read my prescription?

  • Which Lenses would be the thinnest for my prescription?

  • Is an Eyeglass Prescription the Same as a Contact Lens Prescription? TOP OF PAGE
    An Eyeglass Prescription is NOT the same as a Contact Lens Prescription. If you have one without the other, You can try consulting with your eye doctor about possibly obtaining one.

    What is a P.D. Measurement & Why is it Needed? TOP OF PAGE

    A 'P.D.' measurement is considered a Pupilary Distance measurement. This is the measurement from the center of the left pupil to the center of the right pupil, in millimeters. A pupil would be most easily explained as the black dot in your eye. You can view a brief example below:

    Your Pupilary Distance Measurement

    Some of the time, the eye doctor does not record this information on the actual eyeglass prescription, which may mean that the actual eye doctor most likely will not have this measurement on file. Unless glasses were previously purchased from them, then they may not have this information. This is a measurement you can try to obtain, or have obtained, by trying either of the following options:

    1. You can try calling the last place the prescription glasses were made/crafted at. This information is usually kept in the files of the store that previously filled prescription glasses for the patient.

    2. You can have us try and obtain this measurement for you. If this is the case, You would have to provide the telephone number of the last place that made the prescription glasses, with or after you place your order.

    3. You can try visiting the prescribing eye doctor to ask them if they will be able to take this measurement for you.

    4. You can try a local optical store at your own convenience to ask them if it would be possible for them to measure this for you.

    Once you receive your PD measurement, You will Receive it in One or More of the Following Formats:
    Most of the Time you will be Provided with a Number that is around 59 mm's. If this is the case, You would most likely not need to fill the Monocular PD Section. (unless you were provided one, then we would suggest that you provide this information)

    Please Note, When you see a Number between 45-80 mm's, then it is most likely the Main (Binocular) PD. If the measurement is a number between 23 - 40, then it is most likley the Monocular (each eye) PD. Please provide the information that you were provided. In most cases, a Monocular PD would be considered as a more accurate PD measurement.

    When you See the Following, this is what in most cases can be interpreted from it:

    30.5/29 - This Means that the 30.5 is for the Right Eye, and 29 is for the Left Eye. If you add these Together, they would equal your Main PD Measurement (which would be 59.5), however, having the Separated Measurement (Monocular PD) Insures Accuracy in your Prescription Lenses. There is Usually a Tolerance to Remain within 1 millimeter, This Measurement's Accuracy is important to ensure the accuracy of your lenses.

    64 / 61 - This Means that your Main (binocular) PD Measurement for DISTANCE Vision is 64, and your NEAR PD Measurement is 61.

    If the Prescription Glasses you are Purchasing are for Distance Vision, Then Only Include the DISTANCE PD and Same for If you are Purchasing Glasses for Near Vision.

    Can You obtain the prescription from the doctor for me? TOP OF PAGE
    Your prescription can be verified or obtained for you as long as the patient's doctors information is provided in the order. If a prescription release is not on file with your doctors office, then we most likely cannot obtain or verify this information for you. Sending us a fax or scan/email of your prescription would help prevent delays in processing your prescription verification order.

    Why would I submit the patients date of birth and eye doctor's Information? TOP OF PAGE
    We are required to verify your prescription with your eye care provider by law. Many eye care providers use your birthday to find your prescription information. Providing the date of birth may make the verification of your prescription accurate and efficient for us and your doctors office to verify this information. Without your eye doctors information, we cannot process a prescription order. We will need the eye doctors information so we can process verification of your prescription, otherwise your prescription order will not be processed.

    How Do I Read My Prescription?: TOP OF PAGE
      SPH or sph = SPHERE power; the "overall" power

    D.S. or DS = diopters sphere (means you have sphere power only)

    CYL or cyl = CYLINDER power; the amount of astigmatism

    X = axis; X 90 means AXIS 090

    ADD = how much power gets added to the distance Rx, for your reading-only Rx
    or for the bottom half of your bifocals/progressives

    Pl or pl or plo = PLANO; it's a placeholder for the number zero

    O.D. or OD = right eye

    O.S. or OS = left eye

    O.U. or OU = both eyes

    NV or NVO = near-vision or near-vision-only; your doctor is recommending "reading-only" glasses

    P.D. or PD = pupillary distance (the distance in between your right pupil and your left pupil), in millimeters (mm)

    -50 = -0.50

    +100 = +1.00

    When you are looking at your Eyeglass Prescription, it can get pretty confusing.
    They are usually written in the Following Format's:
    From Left to Right: Sphere, Cylinder, Axis
    OD: -2.50 -1.75 x 050
    OS: -1.75 -0.50 x 180

    (This means there is an Astigmatism in the Patients Eye)
    Sometimes a Prescription can look like this:
    OD: -2.50
    OS: -1.75

    (This means that it is only in the Sphere Section)
    Or, A Little Mixture of Both:
    OD: -2.50 -1.75 x 050
    OS: -1.75

    (You would only Fill out the Fields According to your Prescription)

    Anytime it Reads 'SPH', 'DS', 'PL' or 'PLANO', it just means that there is No Power in that Part of the Prescription, So just Ignore that Area and Leave it at '0.00'

    OD: -2.50 -1.75 x 050
    OS: -1.75 PL
    (PL = '0.00')
    Add Powers:
    Add Powers Require Bi-Focal / Progressive (No-Line Bi-Focal) Lenses.
    *Note: If there is a Prism in your Prescription, Use the 'Comments' Field Provided to you to Complete the RX Form. Prism may also include additional fees which will be emailed to you after your order is placed for confirmation. This is usually $10 additional per prism diopter, per eye. 1/2 a prism diopter may be billed as a full diopter.
    If you need anymore help with Reading your Prescription, Please Visit our Contact Us Page or Call Us Toll Free: 1-877-634-2020

    Which Lens would be the thinnest for my Prescription? TOP OF PAGE
    Prescription Range: Recommended Lens:
    'Sphere' - Below 3.50 (+ or -) Hi-Index 1.56
    'Sphere' - 3.00 to 6.00 (+ or -) Hi-Index 1.60
    'Sphere' - 4.00 to 7.00 (+ or -) Hi-Index 1.67
    'Sphere' - 7.00 (+ or -) and Above Hi-Index 1.70 +
    Polycarbonate Lenses are Thin and Lightweight for Almost Any Prescription. However, All recommendations are not guaranteed, for more accurate recommendations, we would suggest that you consult with your eye doctor.

    If you need anymore help or have any further questions, Please Visit our Contact Us Page or Call Us Toll Free: 1-877-634-2020