Contact lenses

• US 9,507,172 B2
• Filed: 05/01/2014
• Issued: 11/29/2016
• Est. Priority Date: 03/02/1998
• Status: Expired due to Fees

• Current Assignee: Johnson & Johnson Vision Care Incorporated (Johnson & Johnson)
• Original Assignee: Johnson & Johnson Vision Care Incorporated (Johnson & Johnson)
• Inventors: Steffen, Robert B., Turner, David C., Vanderlaan, Douglas G.
• Primary Examiner(s): CAIN, EDWARD J
• Application Number:
  US14/267,144
• Publication Number:
  US 20140240661A1
• Time in Patent Office: 943 Days
• Field of Search: 523/106, 523/107, 523/108, 351/159.33
• US Class Current: 1/1
• CPC Class Codes: C08F 230/085 the monomer being a polymerisable silane, e.g. (meth)acryloyloxy trialkoxy silanes or vinyl trialkoxysilanes
• CPC Class Codes: C08F 290/068 Polysiloxanes
• CPC Class Codes: C08L 43/04 Homopolymers or copolymers of monomers containing silicon
• CPC Class Codes: C08L 51/085 on to polysiloxanes
• CPC Class Codes: C08L 83/04 Polysiloxanes
• CPC Class Codes: C09D 133/02 Homopolymers or copolymers of acids; Metal or ammonium salts thereof
• CPC Class Codes: C09D 133/10 Homopolymers or copolymers of methacrylic acid esters
• CPC Class Codes: C09D 133/26 Homopolymers or copolymers of acrylamide or methacrylamide
• CPC Class Codes: G02B 1/043 Contact lenses
• CPC Class Codes: G02C 7/049 Contact lenses having special fitting or structural features achieved by special materials or material structures

Abstract

The invention provides silicone hydrogel contact lenses that exhibit reduced back surface debris and reduced incidence of superior epithelial accurate lesions.

Claims

1. A silicone contact lens comprising a center stiffness of about 1 psi·

mm² or less, a crosslinked lens polymer network comprising at least one wetting agent copolymerized therein and an advancing contact angle is less than about 80 degrees.

2. The contact lens of claim 1, wherein lenticular junction stiffness is about 4 psi·

mm² or less.

3. The lens of claim 1, wherein a center stiffness of about 0.5 psi·

mm² or less and a lenticular junction stiffness of about 4 psi·

mm² or less.

4. The contact lens of claim 1, 2, or 3, wherein the advancing contact angle is less than about 80 degrees.

5. The contact lens of claim 1, 2 or 3, wherein the advancing contact angle is less than about 55 degrees.

6. The lens of claim 4, wherein the internal wetting agent is selected from the group consisting of polyamides, polylactams, polyimides, polylactones, and combinations thereof.

7. The lens of claim 1 wherein said contact lens is formed from a polymer reaction mixture comprising at least one monomethacryloxypropyl terminated polydimethylsiloxane of the formula:

8. The lens of claim 7 wherein R₅₈ comprises a methacrylate moiety;

each R₅₉ is methyl; and

R₆₀ is selected from the group consisting of C_1-10 aliphatic or aromatic group which may include hetero atoms.

9. The lens of claim 8 wherein R₆₀ is selected from the group consisting of C_3-8 alkyl groups.

10. The lens of claim 9 wherein b is an integer from 8 to 10.