MAKING OF PROGRESSIVE SPECTACLE LENS CUSTOMIZED BASED ON BLUR PERCEPTION

摘要

A realization of a progressive spectacle lens makes it possible to personalize the lens according to a perception of blur of a future wearer of the lens. For this, a threshold value (VS) of the blur is determined for the wearer, according to a perception criterion of the blur which varies as a function of an optical power addition value prescribed for the wearer. The threshold value of the blur is associated with a reference gaze direction for the glass that is supplied to the wearer.