![]() Please see the diagram above to help you further.Īsking a friend to help you using your current glasses ![]() Your friend will then read off the measurement to the centre of your left pupil. Ask your friend to close their left eye and for you to look directly into their right eye.Ask your friend to slide the ruler so that the zero value is in the centre of your right pupil and to keep the ruler very steady across your forehead. Ask your friend to close their right eye and you then look directly into their left eye.With your friend sitting opposite you at the same height, ask them to place a ruler across your forehead just above your eyes with the millimetre side facing upwards.This is the easiest method for measuring you PD. Please include a note with your name, telephone number and your reference number that will be provided on the completion of your purchase.Īsking a friend to help you using a ruler We will return the glasses with your new pair. Send us an old pair of your glasses and we will match the centres to these.Though the spectacles will not harm the eyes, they could cause discomfort and eye strain. For people with stronger prescriptions it would be better to measure your PD. This will not be a problem for most people who either are the average or have weak prescriptions (-2 to +2 spheres). Use an average PD measurement which is about 62mm for women and 64mm for men. Measure the distance yourself using a mirror and a ruler as explained below.When written like this it is the individual distance from you right and left pupils to the centre of your nose. It is usually written as one measurement such as 60 (60mm) but can also be shown as R 29 L 31. Ask your optician for your PD measurement.Note: This is generally not included on your prescription. It is needed to ensure the centre of each lens is aligned with the centre of your pupils. Your Pupillary Distance, sometimes referred to as ‘PD’ is the horizontal distance between the centres of your pupils in millimetres. Ordering Prescriptions Lens Options Explained.Clip-in inserts for Skiing and Snowboarding Goggles. ![]()
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