PD glasses are eyeglasses that are specifically made using your pupillary distance (PD) measurement to ensure the lenses are positioned correctly in front of your eyes for optimal vision. Your pupillary distance, or PD, is the distance in millimeters (mm) between the center of one pupil to the center of the other.
Why is PD Important for Glasses?
Getting your PD right is crucial for comfortable and clear vision when wearing glasses. Here's why:
- Optimal Clarity: PD indicates which part of the lens you look through. If the lenses aren't aligned with your pupils, you might experience blurry vision, eye strain, and headaches.
- Comfort: Correct PD ensures that your eyes aren't working harder than necessary to focus. Misaligned lenses can cause discomfort and fatigue.
- Personalized Fit: A PD measurement is a key component of a personalized fit for your glasses.
How is PD Measured?
PD can be measured by an eye care professional during an eye exam. It can also sometimes be measured at home using online tools or by having someone else measure it for you. It's generally recommended to have it professionally measured for the most accurate result.
