An eyedropper is provided for administering a predetermined volume of liquid onto the surface of an eye. The eyedropper includes a body having a nozzle in fluid communication with the internal cavity of the reservoir body. Projecting from an inner surface of the reservoir body are a first projecting portion having a first contact surface and a second projecting portion having a second contact surface. The first contact surface and the second contact surface are disposed opposite from one another and are spaced apart from one another. In use, the first and second contact surfaces limit the displacement volume of the internal cavity when the eyedropper is squeezed thereby limiting the volume of liquid expelled from the nozzle.