How to Read Prescription

It is imperative that you purchase the lenses you have been prescribed. You do not have to send your prescription to LensExpress in order to verify your order. Instead you must prior to the purchase confirm to us that you are indeed ordering contact lenses to which you have a valid prescription for.
The information required for you to order your contact lenses correctly can be found on your prescription. You can also check previously purchased contact lenses boxes in order to find out the parameters.

Here is an explanation of different parameters and what they mean, so as to assist in ensuring you complete the order properly. Your contact lens prescription may look different depending on which eye care professional you have visited. In short your prescription should contain what brand of lenses have been prescribed to you and what parameters this lens should have.

The parameters vary depending on the type of contact lens in question but they are in short:
* OD – right eye
* OS – left eye
* BC – base curve (the range of values can be 8.0 – 10.0)
* Dia – diameter (the range of values can be 13.0 – 15.0)
* Sph – sphere, power (the range of values can be from +20,0 to -20,0)
* Cyl – cylinder (for toric lenses, the range of values can be from +4,0 to -4,0).
* Axis – axis (for toric lenses, the range of values can be 0°-180°)
* Add – addition (for multifocal lenses, the range of values can be: low, med, high)

You can also check previously purchased contact lenses boxes in order to find out the parameters (Sph=D=PWR).