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Optical Measurement


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Experiment on constancy of lookout points

Experiment on constancy of lookout points

Experiment It is generally believed that far PD (pupillary distancePupillary distance: The distance between the center of the pupils. Also known as PD. when…

Peter Torma, PhD April 16, 2018
How to measure PD?

How to measure PD?

Assume a patient is given the level and type of correction her eye needs and decides to use lenses for correction. The optician should then design and position lenses…

Peter Torma, PhD April 9, 2018