Intraokularlinsen mit Zonenweiser Schritthöhensteuerung

Details

Veröffentlichungs-Nr.

EP4736815

Anmeldetag

9. November 2017

Veröffentlichung

6. Mai 2026

Rechtsraum

EP

IPC

A61F2/16

Abstract

A method and system provide an ophthalmic device. The ophthalmic device includes an ophthalmic lens having anterior surface, a posterior surface and at least one diffractive structure including a plurality of zones. The at least one diffractive structure is for at least one of the anterior surface and the posterior surface. Each zone includes at least one echelette having a least one step height. The step height(s) are individually optimized for each zone. To compensate chromatic aberration of eye from distance to a range of vision, a greater than 2π phase step height may be employed and the step height(s) folded by a phase, which is an integer multiple of two multiplied by π. Hence chromatic aberration of eye may be compensated to improve vision from distance to near.

Anmelder

Firma

Alcon Inc.

Land

🇨🇭 Schweiz