首页> 外国专利> CONCEPTION DE VERRE ET PROCÉDÉ D'EMPÊCHEMENT OU DE RALENTISSEMENT DE LA PROGRESSION DE LA MYOPIE

CONCEPTION DE VERRE ET PROCÉDÉ D'EMPÊCHEMENT OU DE RALENTISSEMENT DE LA PROGRESSION DE LA MYOPIE

摘要

A lens is provided that is capable of preventing or slowing the progression of myopia when worn by a person. The lens has a power profile that reduces on-axis and off-axis hyperopic defocus created by the optics of the eye by creating on-axis and off-axis myopic defocus. The on-axis and off-axis myopic defocus is created by providing light rays that pass through a central vision region of the optical portion and light rays that pass through a peripheral region of the optical portion an increase in positive (plus) power. The overall effect is to prevent or slow the progression of myopia without any perceptible degradation in the person's central vision.

著录项

  • 公开/公告号EP2321690B1

    专利类型

  • 公开/公告日2020.05.27

    原文格式PDF

  • 申请/专利权人 Alcon Inc.;

    申请/专利号EP09752016.7

  • 发明设计人

    申请日2009.07.31

  • 分类号

  • 国家 EP

  • 入库时间 2022-08-21 10:52:53

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