How to Determine Interocular Distance?
How to Measure Your Pd? Stand 8 In. Away from a Mirror. Hold a Ruler Against Your Brow. Close Your Right Eye Then Align the Ruler's 0 Mm with the Center of...
- Stand 8 in. away from a mirror.
- Hold a ruler against your brow.
- Close your right eye then align the ruler's 0 mm with the center of your left pupil.
- Look straight then close your left eye and open your right eye.
- The mm line that lines up to the center of your right pupil is your PD.
How do I figure out my pupillary distance?
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. That number is your PD. Jot it down.
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What is a normal pupillary 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.
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