Patent ID: 9636425
Date: 2017-05-02
CPC Classifications: A61B,A61K,A61M,B65D

Claim:
1. A method of staining an eye of a patient in need thereof with a powdered dye without contacting the surface of the eye with a physical object, the method comprising: (1) providing a delivery device comprising a sealed container, an actuator, a powdered dye within the sealed container, and a propellant under pressure within the sealed container; and (2) delivering the powdered dye to the surface of the eye by engaging the actuator to dispense the powdered dye from the delivery device, wherein the powdered dye is selected from the group consisting of Fluorescein, Lissamine Green, Rose Bengal, and combinations thereof; and the actuator is metered such that a single engagement of the actuator dispenses a predetermined amount of the powdered dye from the delivery device.