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:
Jun. 28, 1994
Filed:
Sep. 13, 1991
Abhay Joshi, Irvine, CA (US);
David Meadows, Mission Viejo, CA (US);
Jerry Paugh, Costa Mesa, CA (US);
Allergan, Inc., Irvine, CA (US);
Abstract
Apparatus and method for measuring ophthalmic formulation retention on the surface of an eye include dissolving a fluorescent macromolecule in an ophthalmic formulation to form a fluorescently labelled formulation; topically administering the fluorescently labelled formulation to an eye, said fluorescently labelled formulation forming a thin film on the eye surface. Apparatus is provided for illuminating the eye to cause fluorescence of the fluorescently labelled formulation as the fluorescently labelled formulation thin film is eliminated from the eye by normal blinking and lacrimation; and for measuring fluorescence from the thin film as a function of time.