The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 20, 1999
Filed:
Aug. 14, 1996
Henry P Dabrowski, Naples, NY (US);
Anil Salpekar, Pittsford, NY (US);
O William Lever, Jr, Pittsford, NY (US);
Bausch & Lomb Incorporated, Rochester, NY (US);
Abstract
An ophthalmic artificial tear solution is described for treating irritation and dryness of the eyes with a formulation that includes polyvinylpyrrolidone, a preservative such as benzalkonium chloride, glycerin and hydroxypropyl methylcellulose, wherein the composition is an aqueous solution having isotonic properties with respect to the eye. The ophthalmic solution of the invention is characterized as having a low viscosity, preferably less than 5 cps, and a low surface tension, preferably less than 40 dynes/cm, wherein wettability, retainability and comfort of the user are enhanced.