Abstract: A syringe-like device having a chamber in which a pressurizing piston reciprocates. The chamber is connected on one end to a vial containing a drug to be delivered to an eye and on the other end to a needle or cannula for administering the drug to an eye. Pulling proximally backwards on the piston creates a vacuum in the chamber and draws the drug out of the vial. Upon release of the piston, a spring pushes the piston forward, pressurizing the chamber and forcing the drug out of the cannula. A one-way valve prevents the drug from being expelled back into the vial. A pinch valve between the chamber and the cannula allows the flow of the drug out of the cannula to be stopped. The flow rate of the drug out of the cannula can be controlled by varying the size of the chamber, piston and spring.