| 摘要 |
A method for producing an ophthalmic glass (1) intended for an identified wearer of spectacles comprises distribution of an optical power addition between an anterior face (SANT) and a posterior face (SPOST) of said glass. Said distribution of the addition is done in such a way as to modify an optical characteristic as a function of relative amplitudes of eye and head movements of the wearer. Superior comfort of the glass in use is thus obtained. The optical characteristic which is considered may be, in particular, a variation of magnification procured by the glass between far and near vision conditions. An improvement of the invention is to also modify a design of the progressive glass as a function of the amplitudes of the eye and head movements of the wearer, using only a single semifinished glass model of fixed design for each addition value of the anterior face. |
