Medical term:

decentration



de·cen·tra·tion

(dē'sen-trā'shŭn),
Removal from the center.
Farlex Partner Medical Dictionary © Farlex 2012

decentration (dec)

A displacement, horizontal and/or vertical, of the centration point of a spectacle lens from the standard optical centre position (British Standard). See standard optical position centre; centration point.
Millodot: Dictionary of Optometry and Visual Science, 7th edition. © 2009 Butterworth-Heinemann


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