The frequency of check-ups for dynamic monitoring of patients who wear Purevision Toric Contact Lenses is determined by a physician taking into account individual characteristics of patient and based on the standard approach recommended in manuals. The first examination of the primary patients is required to evaluate the primary adaptation of the cornea to hypoxic stress after about an hour of wearing contact lenses. Then it is recommended to examine the patients after the first few weeks of wearing and then every 6-12 months thereafter. Typically a contact lens prescription is good for one year, unless otherwise specified from by your doctor. If you have a valid contact lens prescription you can purchase your lenses online from WebEyeCare.
