What is the average pupil distance?
An average PD measurement is about 62mm for women and 64mm for men. For children the measurement usually ranges from 41 to 55 mm.
How do I measure my pupil distance?
Look straight ahead into the mirror and position the ruler over the bridge of your nose. Starting with the right eye, line up the zero end of the ruler at your pupil; measure the distance from your right to your left pupil. The millimeter number that lines up with your left pupil is the measurement you want.
What is pupil distance on prescription?
So, first thing’s first: what is pupillary distance (PD)? Essentially, it’s the distance between the centres of your pupils (the black bits in the middle of the eyes). Your PD is an important part of your glasses prescription that makes sure you’re looking through the best spot in your lenses for clear vision.
Why is pupil distance important?
After receiving an eye prescription, an optician will take your pupillary distance (PD) measurement before sending off your frames to be fitted with lenses. This is an extremely important number because it measures the distance between your eyes to ensure your pupils match up with the optical centre of lenses.
Can I measure my PD Online?
Measure your Pupillary Distance Online The best option of measuring your PD is by using our free online tool. We recommend this way as it’s fast, easy, and accurate. All you need for our online tool is a smartphone or a webcam and a card with a magnetic strip.
Does your PD have to be exact?
Your PD should be exact. If your lenses aren’t centered correctly, they can cause discomfort and eye strain. A small margin of error might not cause problems, but it’s better to be as accurate as possible.
How do I calculate my pupil distance?
Stand or sit about 20 cm (about 8 inches) away from a mirror.
What is the best way to measure pupil distance?
There are 2 ways of measuring pupillary distance. The first is known as binocular. This involves measuring from pupil to pupil and it gives a range of 41 to 80 mm. The second is monocular where by the distance measured is from the pupil to the middle of your face and both sides should be measured.
What is the distance between the pupils called?
The Pupil Distance or otherwise known as Pupillary Distance (PD) is the distance between your two pupils, measured in millimeters (mm).
What is normal pupillary distance?
Adults normally have a pupillary distance between 54 and 72 mm and children 41 to 55mm. There are 2 ways of measuring pupillary distance.