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Ophthalmic lenses for high order aberration correction and processes for production of the lenses

A technology for aberration correction and spectacle lenses, which can be used in glasses/protective glasses, glasses/goggles, applications, etc., and can solve problems such as inability to correct

Inactive Publication Date: 2009-06-24
JOHNSON & JOHNSON VISION CARE INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of these lenses is that they can only correct low-order optical aberrations such as defocus and astigmatism, but not higher-order aberrations

Method used

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  • Ophthalmic lenses for high order aberration correction and processes for production of the lenses
  • Ophthalmic lenses for high order aberration correction and processes for production of the lenses
  • Ophthalmic lenses for high order aberration correction and processes for production of the lenses

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Embodiment Construction

[0010] The present invention provides a multifocal lens and a method of producing the lens which correct optical aberrations of the lens wearer's eye. In general, these aberrations are any deviation from a spherical wavefront at any location on the wavefront. Classic descriptions of these aberrations are spherical aberration, astigmatism, coma and distortion. Alternatively, these aberrations can be described mathematically, eg with Zernike polynomials. The lenses of the present invention correct these aberrations in more than one direction of gaze.

[0011] In one embodiment, the present invention provides a method of producing a lens for a lens wearer comprising, consisting essentially only of, or consisting of: a) measuring the lens wearer's basic refractive prescription; providing vision targets at at least one first distance and one second distance to measure wavefront aberration of the lens wearer; c) mathematically converting the aberration measurement to a height diff...

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Abstract

The present invention provides multifocal ophthalmic lenses having multiple zones of more than one diopter or focal length. The lens corrects higher order optical aberrations in more than one field of gaze. To this end, the present invention provides a method for producing a lens for use by a lens wearer, comprising the steps of: a) measuring the lens wearer's basic refractive prescription; b) by measuring at least a first distance and a second A vision target is provided at the distance to measure the wavefront aberration of the lens wearer; c) mathematically convert the wavefront aberration into a height difference; d) use the basic refractive prescription and the converted height difference, as The lens wearer provides one spectacle lens.

Description

technical field [0001] The present invention relates to multifocal ophthalmic lenses. In particular, the present invention provides lenses having multiple zones of more than one optical power or focal length. The lens corrects higher order optical aberrations in more than one field of view. Background technique [0002] As an individual ages, the eye is less able to accommodate or bend the natural lens to focus on objects that are fairly close to the observer. This condition is called presbyopia. Likewise, there is a lack of accommodation in people who have had their natural lens removed and an intraocular lens placed as a replacement. [0003] Among the methods used to correct inaccommodative eyes are lenses with more than one diopter. In particular, spectacle lenses, contact lenses and intraocular lenses have been developed in which far, near and intermediate diopter zones are provided. The disadvantage of these lenses is that they can only correct low-order optical ab...

Claims

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Application Information

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IPC IPC(8): G02C7/04A61B3/103A61B3/107G02C7/02G02C7/06
CPCG02C7/044A61B3/103G02C7/042G02C2202/22A61B3/107G02C7/04
Inventor J·H·罗夫曼R·J·纳森E·V·梅内泽斯
Owner JOHNSON & JOHNSON VISION CARE INC