Abstract: An apparatus for administering a drug onto an ocular surface of a subject, the apparatus including a probe holding means for holding a probe within the apparatus. The probe has a first part being made of a bio-compatible material, and a second part being made of a magnetic material, the first part having a proximal end connected to the second part and a distal end opposite to the proximal end, wherein the distal end of the first part is employed to carry the drug. The apparatus also has an induction coil and control circuit, wherein the control circuit controls the induction coil to produce a first magnetic force and a second magnetic force, in an alternating manner, to release the probe in a first direction and to retract the probe in a second direction, respectively, wherein, when released in the first direction, the probe administers the drug from the distal end of the first part upon touching the ocular surface of the subject.