Simplified process for cleaning and disinfecting contact lenses with a single solution

• US 20020039975A1
• Filed: 06/20/2001
• Published: 04/04/2002
• Est. Priority Date: 07/31/2000
• Status: Abandoned Application

• Current Assignee: Alcon Universal Ltd. (Novartis Ag)
• Original Assignee: Alcon Universal Ltd. (Novartis Ag)
• Inventors: Chowhan, Masood A., Rosenthal, Ruth Ann, Stone, Ralph P.
• Application Number:
  US09/885,637
• Publication Number:
  US 20020039975A1
• Time in Patent Office: Days
• US Class Current: 510/112
• CPC Class Codes: A61L 12/14 Organic compounds not covered by groups A61L12/10 or A61L12/12
• CPC Class Codes: A61L 12/142 Polymeric biguanides
• CPC Class Codes: C11D 3/0078 Compositions for cleaning contact lenses, spectacles or lenses
• CPC Class Codes: C11D 3/2086 Hydroxy carboxylic acids-salts thereof
• CPC Class Codes: C11D 3/221 Mono, di- or trisaccharides or derivatives thereof
• CPC Class Codes: C11D 3/30 Amines; Substituted amines ; Quaternized amines
• CPC Class Codes: C11D 3/48 Medical, disinfecting agents, disinfecting, antibacterial, germicidal or antimicrobial compositions

Abstract

An improved, simplified process for cleaning and disinfecting contact lenses is described. The process employs a multi-purpose solution containing a non-oxidative antimicrobial agents, and does not include or require rubbing of the lenses.

Claims

1. An improved, simplified process for cleaning and disinfecting contact lenses with a single solution, which comprises the following steps:

(a) rinsing each side of a contact lens for a few seconds with a single, multi-purpose solution;

(b) soaking the lens in the multi-purpose solution for a time sufficient to clean and disinfect the lens;

(c) removing the lens from the multi-purpose solution; and

(d) rinsing each side of the lens for a few seconds with the multi-purpose solution;

wherein the lens is not rubbed as a part of the initial rinsing step.

2. An improved process according to claim 1, wherein the multi-purpose solution comprises a cleaning system, a comfort system and a disinfecting system.

3. An improved process according to claim 2, wherein the multi-purpose solution has the following formula:

4. An improved, simplified process for cleaning and disinfecting contact lenses, which consists essentially of the following steps:

(a) rinsing each side of a contact lens for a few seconds with a single, multi-purpose solution;

(b) soaking the lens in the multi-purpose solution for a time sufficient to clean and disinfect the lens;

(c) removing the lens from the multi-purpose solution; and

(d) rinsing each side of the lens for a few seconds with the multi-purpose solution;

wherein the lens is not rubbed as part of the initial rinsing step.