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US 6,554,425 B1Granted
Ophthalmic lenses for high order aberration correction and processes for production of the lenses
AssigneeJohnson & Johnson Vision Care, Inc.
InventorsJeffrey H. Roffman, Richard J. Nason, Edgar V. Menezes
Life of this patent
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Abstract
The invention provides multifocal ophthalmic lenses that have zones of more than one optical power, or focal length. The lenses correct for high order optical aberrations in more than one field of gaze.
Claims29
A method for producing a lens for a lens wearer comprising the steps of:
- a.) measuring the basic refractive prescription of the lens wearer;
- b.) measuring the wavefront aberrations of the lens wearer by providing visual targets at at least a first and a second distance;
- c.) converting the aberration measurements to a height difference;
- and d.) using the basic refractive prescription and converted difference to provide an ophthalmic lens for the lens wearer.
1 more element
A multifocal lens, comprising a front surface, back surface, or a combination thereof wherein changes in the elevation of the lens' surface are incorporated in order to achieve correction of the wavefront aberrations.
Dependencies are inferred from the claim text.