Therefore, reduce your P.D number by 4 mm (2 mm for each eye), when ordering reading or near glasses. When focusing close up, such as when reading, your pupils come inwards. These standard measurements are often used by ophthalmic opticians when your P.D cannot be obtained, and will always be suitable to allow us to make your glasses. Binocular PD is a single number representing the total distance between your pupils. If you cannot measure your P.D then use a standard measurement of 60mm for women, and 64mm for men for your distance glasses. Pupil distance can be expressed in two ways: Binocular or Monocular PD. It helps us fine-tune your lenses to your exact measurements. This is a simple PD ruler, it can help you when you want to purchase eyeglasses. If you require prescription bifocal glasses then you. The digital PD ruler is used to measure the distance between two pupils. Note: These instructions are for getting your Distance PD measurement. The millimeter line that aligns with the center of the right pupil is the PD. Align the rulers 0 mm mark with the center of the left pupil.
![pupil distance measurement pupil distance measurement](https://www.neweyesglasses.org/img/home-PD-Measurement.jpg)
Your PD is a key part of your glasses prescription that tells us the exact area of the lens you look through for clear vision. Directions: Hold a ruler against your brow and look straight ahead into a mirror. Measure (in mm) from the outside of one pupil to the outside of the other pupil. In short, it’s the distance between the centres of your pupils (the black circles in the middle of the eyes).Measure (in mm) from the centre of one pupil to the centre of the other.It can be done using a ruler in two different ways. Depending on the eye colour, the easiest way to measure pupil distance will be to measure at the opposite edges of the pupil, or the iris as shown, with a. If you're struggling, ask a friend to help measure it for you. The easiest and most accurate way to measure your pupil distance is by asking your optician during an eye test.Īlternatively, you can measure the distance yourself using a mirror and a ruler. It’s important to know this measurement as it allows us to make your glasses with the lenses in the correct position. Write down your measurements Once you have a number, write it down right away so you dont forget it. Wearing glasses Take them off for your photo. When you align the 0 on the ruler right above your right pupil (trying to align it with the center of the pupil), you should be able to follow the ruler to the left eye, align it with the pupil, and read the measurement on the ruler. Before using our PD tool, review the steps below.
![pupil distance measurement pupil distance measurement](https://image.ebdcdn.com/image/upload/f_auto,q_85/v1/static/images/learning-center/pd-img-large-new.png)
Your pupil distance is exactly what it sounds like it’s the measurement (in millimetres) between your pupils. Measure your pupillary distance (PD) PD is the distance between your pupils, and its used to help center a prescription correctly in your frames.