Patent ID: 8603024

Claim:
A valve system for use within an ophthalmic device, the valve system comprising: an adjustable valve having: a housing defining a cavity; and a movable diaphragm bounding at least one side of the cavity; a fluid reservoir in fluid communication with the cavity of the adjustable valve; an actuator for controlling a flow of fluid between the fluid reservoir and the cavity of the adjustable valve, the actuator comprising a voltage source, a pair of electrodes, an actuator fluid and a bubble-generating system configured to generate bubbles by converting at least a portion of the actuator fluid to a gas, wherein one of the electrodes is positioned within the fluid reservoir and the other electrode is positioned outside of the fluid reservoir; a first check valve positioned between the fluid reservoir and the cavity of the adjustable valve along a first fluid passageway, the first check valve preventing fluid flow from the fluid reservoir to the cavity of the adjustable valve; and a second check valve positioned between the fluid reservoir and the cavity of the adjustable valve along a second fluid passageway, the second check valve preventing fluid flow from the cavity of the adjustable valve to the fluid reservoir.