While ordering contact lenses you will be asked to select certain parameters of the product that you are interested in. If you have a contact lens prescription from your eye doctor, you might see some of these parameters on it. We'll explain what each of them means below:
For astigmatic patients, you will also need to provide:
CYL Power / Cylinder and Axis are usually separated by "X" and read as "times"
For presbyopic patients, you will also need to provide:
This is a medical device.
Use it according to the instructions for use or the label.