Surface enhanced ophthalmic lens

Patent metadata

Field	Value
Publication number	US-9298019-B2
Application number	US-201113094870-A
Country	US
Kind code	B2
Filing date	Apr 27, 2011
Priority date	May 4, 2010
Publication date	Mar 29, 2016
Grant date	Mar 29, 2016

Abstract

This invention discloses methods and apparatus for providing an ophthalmic lens with a textured pattern within an optic zone and an ophthalmic lens with a textured pattern within the optic zone.

First claim

We claim:

1. An ophthalmic device comprising:
a lens having an optic zone and a peripheral zone;
a convex front curve surface and a concave back curve surface; and
a textured pattern formed into one or both of the convex front curve surface and the concave back curve surface at a depth and spacing that increases the wettability of the surface thereby improving comfort and does not obstruct normal vision through the device or alter the focal power of the lens, the textured pattern is a non-periodic structure and is formed at least within the optic zone and comprises a single, continuous groove that spirals about a center point formed in the convex front curve surface, wherein the single, continuous groove that spirals about a center point comprises a cross-sectional shape having a rounded top portion positioned along an exterior area of textured pattern and a pointed bottom portion positioned along an interior portion of the textured pattern.

2. The lens of claim 1 , wherein the textured pattern is additionally formed within the peripheral zone.

3. The lens of claim 2 wherein the ophthalmic lens comprises a silicon hydrogel material.

4. The lens of claim 2 wherein the textured pattern comprises a depth of about two microns or less.

5. The lens of claim 2 wherein the textured pattern comprises a depth of about 0.5 microns or less.

6. The lens of claim 1 where the ophthalmic lens comprises at least one of: etafilcon, senofilcon, galyfilcon and narafilcon.

Assignees

• Pugh Randall B
• Fadli Zohra
• Natarajan Sriram
• Cooper Kevin
• Vyakarnam Murty N
• Johnson & Johnson Vision Care

Inventors

• Pugh Randall B
• Fadli Zohra
• Natarajan Sriram
• Cooper Kevin
• Vyakarnam Murty N

Classifications

• G02C7/04 Primary

  Contact lenses for the eyes (disinfection or sterilisation of contact lenses A61L12/00) · CPC title

• G02C7/021

  with pattern for identification or with cosmetic or therapeutic effects (methods and processes take preference, e.g. printing, marking or copying processes B41M; identification in general G09F3/00; producing decorative effects in general B44C; surface treatment of glass C03C15/00 - C03C23/00; positioning or marking of lenses B24B13/0055) · CPC title

• G02C7/022

  Ophthalmic lenses having special refractive features achieved by special materials or material structures (G02C7/049 takes precedence) · CPC title

• G02C7/049

  Contact lenses having special fitting or structural features achieved by special materials or material structures · CPC title

• G02C7/044

  Annular configuration, e.g. pupil tuned · CPC title