Abstract: An eye drop applicator which has an adjustable guide arm. The guide arm defines a semi-rigid member attached to an eye drop container. The guide arm serves as a point of tactile reference to the user who seeks to dispense liquid eye medicament. It further serves as a retractor of the lower eyelid, thereby allowing the user to place eye drops accurately and efficiently into the conjunctiva. The eye drop applicator can be manipulated with one hand, and avoids the necessity of the user placing his or her fingers near the eye socket, thereby maximizing the sterility and effectiveness of the medicament. Moreover, its configuration can be adjusted so as to conform to the shape of the user's face. The eye drop applicator also presents an improved closure system. A cap is placed over the nozzle of an eye drop container to seal the contents. Access to the eye drops is obtained by opening a cover at the end of the cap. Removing the cover exposes an opening in the cap through which eye drops are dispensed.