One aspect of the present disclosure relates to a method for modulating, suppressing or preventing an ocular disorder in a subject. One step of the method can include positioning at least one electrode on or proximate to at least one of a sphenopalatine ganglion (SPG), a sphenopalatine nerve (SN), a vidian nerve (VN), a greater petrosal nerve (GPN), a deep petrosal nerve (DPN), or a branch thereof, of the subject. Next, the at least one electrode can be activated to apply an electrical signal to at least one of the SPG, the SN, the VN, the GPN, the DPN, or the branch thereof.