To provide the best care possible to our customers, we have implemented a verification system that follows the Fairness to Contact
Lens Consumer Law (FCLCA) and Rules for the customers. We are required to verify prescriptions before we ship any lenses.
We highly recommend you to renew your prescription if your prescription is expired. It is necessary to get your eye health examined
regularly , even if you aren’t experiencing any issues with vision, so please consult with your eye care professionals.
A valid prescription requires the following:
OD: OD stands for oculus dexter, the Latin phrase for “right eye.”
OS: OS stands for oculus sinister, the Latin phrase for “left eye.”
If both the left and right eye has the same diagnosis and prescription information, the abbreviation “OU” is used instead, or “ocular
uniter,” meaning both eyes.
Sphere (SPH): The SPH number corrects for nearsighted [indicated with a minus (-)] or farsighted [indicated with a plus (+)] vision.
We only supply Myopia lenses at the moment.
Cylinder (CYL), Axis: The CYL number and AXIS number are correct for astigmatism. They always appear in pairs. If no cylinder
power is noted, either you’ve no astigmatism or your astigmatism is so slight that it is not really necessary to correct it with your
eyeglass lenses. We don't sell colored contacts for astigmatism.
Pupillary Distance: The pupillary distance (PD) measurement is the distance between your pupils. Only single PD is available on our
website. If you have dual PD, add them up. If your doctor does not provide your PD, you can measure it yourself with our guide.
ADD: Add stands for Addition. It stands for the additional correction that you need for reading. It is used in progressive glasses. It
represents the additional power over the distance prescription. It only appears once in your prescription because the additional
power is the same for both eyes. The value is typically between +0.50 to +4.00.
Prescriber or Optometrist's information (Name, Address, Phone Number)
Valid expiration date
Use a ruler that has millimeter measurements. You can also use a ruler with centimeter measurements and simply multiply
the result by 10 to get your millimeter measurement. Or you can also use any straight object such as a book, magazine,
piece of cardstock, etc. to mark the location of your pupils, then simply measure the distance between your marks.