PROGRESSIVE OPHTHALMIC LENS

摘要

The invention relates to a progressive ophthalmic lens comprising a front surface and a rear surface each surface having in each point an altitude a mean sphere value and a cylinder value the front surface of the lens comprising: a far vision zone having a far vision reference point; a near vision zone having a near vision reference point; a main meridian wherein the front surface is regressive and has: a sphere gradient normalized value of less than 7.50.10 mm at any point in a central portion of the lens including a portion of the main meridian (32) the far vision reference point (FV) and the near vision reference point (NV); a cylinder gradient normalized value of less than 1.45 mm at any point in the central portion of the lens.