| 摘要 |
<p>Method for optimizing the postural prism to be added to a pair of ophthalmic lenses adapted to a wearer, each ophthalmic lens comprising at least a first and a second distinct vision zone, the first vision zone being adapted to a first distance vision, the postural prism being optimized so as to have the wearer gaze through the first vision zone when gazing at a target at the first distance, the method comprising:
- an initial pair of ophthalmic lenses providing step S1, during which a pair of ophthalmic lenses adapted to the wearer is provided to the wearer, each ophthalmic lens comprising at least two distinct vision zones, the first vision zone being adapted to a first distance vision,
- a postural prism adding step S2, during which a same postural prism is added to each ophthalmic lens,
- a gazing step S3, during which the wearer is required to gaze at at least a first distance target through the pair of ophthalmic lenses with the added postural prism,
- a gazing direction determining step S4, during which the wearer's gazing direction during the gazing step S3 is determined,
wherein steps S2 to S4 are repeated while changing the added postural prism and imposing that the added postural prism is smaller than or equal to a maximum prism value, steps S2 to S4 being repeated so as to determine the smallest added postural prism for which the wearer's gazing direction determined during the gazing direction determining step S4 passes through the first vision zone.</p> |
