Clarification of parameters
Move the cursor over the data in the table for clarification.
Diopter (PWR)
The number indicates the dioptric strength of the corrective contact lens. A minus sign indicates nearsightedness (Myopia), a plus sign indicates farsightedness (Hypermetropia). This finding shows myopia and different diopters for each eye, which is not unusual.
Cylindrical diopter (CYL)
The number indicates the amount of cylindrical dioptric strength with which we correct astigmatism.
Base of curvature (BC)
The number indicates the curvature of the contact lens and is measured in millimeters. For proper application, comfort and eye health, the curvature of the contact lens must be in the right relationship with the curvature of the cornea.
Diameter (DIA)
The number indicates the diameter (size) of the contact lens and is measured in millimeters. The diameter of the contact lens must be in accordance with the size of the eye in order to avoid irritation and injury to the eye.
Cylinder axis (Axis)
The number indicates the angle of the cylinder of the contact lens with which we correct astigmatism.
Addition (ADD)
The number indicates the positive dioptric addition to the dioptric distance correction, which is used to correct senile farsightedness. ADD is always prescribed with a plus sign, although sometimes it is not indicated.
Color
This information is entered if we want to change the eye color to the desired shade. Color names are individual from manufacturer to manufacturer.
Manufacturer
The information indicates which manufacturer produces the contact lens.
Marka – brand
Finding – the prescription always includes the brand name of the contact lenses prescribed. The brand of contact lenses prescribed by the finding must not be changed arbitrarily in order not to cause irritation and damage to the eye. Changing the brand changes the characteristics of the contact lenses (material, size, base, way of wearing, way of replacing, stabilization of the contact lens, care system, etc.). The decision to change the brand of contact lenses is made by an eye specialist (ophthalmologist, optometrist).
Replacement
The replacement schedule refers to the period in which you replace the old pair with a new pair of contact lenses, regardless of whether you have worn them only once or more than once. The replacement schedule depends on the type of contact lenses, i.e. whether the contact lenses are one-day, two-week, monthly, three-month or annual.
Way of wearing
Contact lens wear schedule refers to the manner and time period of wearing contact lenses before removing them from your eyes.
The way of wearing can be:
- daily wear – take the contact lenses out of your eye every day
- flexible (flexible wear) – for occasional wear
- extended wear – wear contact lenses continuously, up to 6 days without removing them from the eye, depends on the recommendation and the type of contact lens
- continuous wear – wear contact lenses continuously, up to 30 days without removing them from the eye, depends on the recommendation and the type of contact lens
Contact lens care:
It refers to the types of contact lens care solutions (multipurpose solution, peroxide solution). Changing the solution changes its effectiveness with regard to the type of contact lenses, which means that the contact lenses may not have been cleaned completely, so unwanted allergic reactions may occur. The names of the solutions are individual from manufacturer to manufacturer.
Use of deproteinization tablets
An eye specialist (ophthalmologist, optometrist) will recommend additional ezymatic cleaning of proteins from the surface of contact lenses if necessary. Names of tablets for deproteinization are individual depending on the manufacturer.
Control examination
The date marks a return visit to determine contact lens tolerability, eye health and dioptric power control.
