How to Read Your Contact Prescription Box
Reading your contact prescription box can be a bit confusing, but it’s important to understand what the numbers mean in order to get the right contacts for your eyes. Here are some tips on how to read your contact prescription box.
Step 1: Identify the Parameters
The first step is to identify the parameters of your prescription. This includes the base curve (BC), diameter (DIA), and power (PWR). These three parameters will be listed on the front of your contact prescription box. The BC is measured in millimeters and indicates the curvature of the lens. The DIA is also measured in millimeters and indicates the size of the lens. The PWR is measured in diopters and indicates the strength of the lens.
Step 2: Check for Additional Parameters
Some prescriptions may include additional parameters such as cylinder (CYL) or axis (AXS). The CYL is measured in diopters and indicates any astigmatism that needs to be corrected. The AXS is measured in degrees and indicates where the astigmatism lies on the eye. If these parameters are included, they will be listed on the back of your contact prescription box.
Step 3: Confirm with Your Eye Care Professional
Once you have identified all of the parameters, it’s important to confirm them with your eye care professional. They can help ensure that you have all of the correct information before ordering contacts.