#PUPIL DISTANCE ON GLASSES HOW TO#
#PUPIL DISTANCE ON GLASSES UPDATE#

Your friend should sit at the same level as you and hold a millimetre ruler across the bridge of your nose (making sure the measurement markings on the ruler are on the side closest to your eyes).

Don’t feel like you can get an accurate reading by measuring yourself? Here’s how a friend can measure your PD. This measurement works out the same as from the middle of one pupil to the other. If you’re having trouble deciding where the centre of the pupil is, you can measure from the far-left edge of the iris (the coloured circle around the pupil) of one eye to the far-left edge of the iris of the other.

Now read the millimetre measurement that lines up with the centre of your right pupil.

Without moving the ruler, close your left eye and open your right one.

Line up the 0 mark of the ruler with the centre of your left pupil and keep your head still.

Lay the ruler flat horizontally across the mirror in front of you and close your right eye.

Stand facing a mirror, at a distance of about 20cm.

#PUPIL DISTANCE ON GLASSES HOW TO#

How to measure your own PD in 5 simple steps The first number of the dual PD measurement is always the right eye and the second is the left eye. Dual PD is a measurement that consists of two numbers: the distance between each of the pupils independently and the bridge of the nose. Single PD is the distance between the centres of the two pupils. People sometimes talk about two different types of PD measurement: single and dual PD. For optimal vision, it’s important that you are looking through the central part of the lens, so you need to make sure you measure pupillary distance accurately.

#PUPIL DISTANCE ON GLASSES UPDATE#

If you need to update your prescription or get fitted for a new pair of eyeglasses, make an appointment at your neighborhood Pearle Vision EyeCare Center.Your PD measurement is used in the alignment of your glasses to make sure your pupils are lined up with the centre of each lens. Our eyecare professionals can also help you find the best fit for your face shape during your visit. The best way to find your perfect fit is to find a pair of glasses or sunglasses that already fit you well and look for these measurements.

Last pair of digits is the length of the frame arms.

Second pair of digits are the bridge width.

Typically, you’ll see three numbers in this order: If you’ve ever looked at the arms inside a pair of glasses, you’ve probably wondered “what are the numbers on my glasses?”

Repeat the steps to ensure the number is accurate.Īside from your pupil distance, you’ll want to consider a few other eye measurements for your glasses to get the best fit, including your frames lens width, bridge width, and temple (arm) length.

The number (measured in millimeters) that ends at your left pupil is your PD measurement.

Then, measure the distance from your right to left pupil.

Start with the right eye and line up the beginning of the ruler at your pupil.

Look straight into the mirror and place the ruler over the bridge of your nose.

Grab a ruler and stand about eight inches away from a mirror.

Measuring your PD for glasses is easy, just follow these steps: You can measure your pupil distance yourself using a ruler, or you can make an appointment at your neighborhood Pearle Vision EyeCare Center and have one of our eye doctors update your prescription to include your PD measurement. Pupillary distance on prescriptions can be found under the initials PD. This number lets the lens maker know where to put the optical center on each lens for the best vision possible. What is pupillary distance (PD)? It’s the distance (measured in millimeters) between the centers of each of your pupils. Learn how to measure your pupillary distance in order to get the best fit for your eyeglasses.

Pupil distance on glasses