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Method for designing spectacle lenses taking into account an individual's head and eye movement

A design method and technology of spectacle lenses, applied in the direction of eye testing equipment, glasses/goggles, optical components, etc., can solve the problem of not accurately considering, not providing design method guidance, etc.

Active Publication Date: 2007-10-17
ESSILOR INT CIE GEN DOPTIQUE
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

Traditional design methods do not account for these parameters precisely and provide little to no guidance on the design method optimization process that requires defining merit functions incorporating one or more of the described parameters

Method used

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  • Method for designing spectacle lenses taking into account an individual's head and eye movement

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Embodiment Construction

[0028] The invention is further illustrated by, but not limited to, the following examples.

[0029] For each subject, two-dimensional recordings of viewpoints, eye movements and head movements for single vision lenses and progressive lenses were compared with each other as they performed the three visual maneuvers. The lenses used are SOLA VIP TM and SILOR SUPER NO-LINE TM progressive multifocal lenses. The optical center of each lens to be tested is determined and marked at the appropriate intersection by conventional means. A gel filter (Kodak Wratten No. 87C) with five 0.6 mm apertures arranged as center, upper left, upper right, lower left, lower right was attached centrally to the front of the lens on the left eye. The central aperture is located at the appropriate intersection of the lens, or at the eye point of the lens centered on the pupil. The filters block visible light and allow infrared light to allow head and eye movement to be recorded. The wearer's other ...

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Abstract

A method for designing ophthalmic lenses, including progressive addition lenses, and lenses produced by the method are provided. The method permits the direct correlation of an individual's subjective assessment of the len's performance and the objective measure of lens performance relative to the individual. The method permits generation of lens designs based on the head and eye movement of the individual and the designing of customized lenses.

Description

technical field [0001] The invention relates to a design method of an optical lens. In particular, the present invention provides a method for designing spectacle lenses by taking into account the individual's head and eye movements. The invention also provides a method for designing lenses customized for individual wearers. Background technique [0002] It is well known that spectacle lenses are used for the correction of refractive errors. For example, multifocal lenses, such as progressive addition lenses (PAL), are used to treat hyperopia. The progressive surface of a progressive lens gradually and continuously increases diopters from the far focus point to the near focus point to provide distance, intermediate and near vision. [0003] There are many design methods for ophthalmic lenses. Representative methods include: benchmarking one or more known designs, developing theoretical target values ​​for control optical parameters, obtaining subjective patient feedback,...

Claims

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Application Information

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IPC IPC(8): G02C7/02A61B3/113
CPCG02C7/02G02C7/061G02C7/027
Inventor 理查德・J・内森阿米塔瓦・古普塔阿卡迪・塞莱诺肯尼思・J・丘弗雷达乔治・A・齐科斯埃德加・V・梅内塞斯
Owner ESSILOR INT CIE GEN DOPTIQUE
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