An electrotherapeutic system for treating a visual disease is disclosed. The system includes a signal generator configured to generate a treatment waveform comprising a series of current pulses. Preferably, the current pulses have a peak current amplitude of 200 microamps or less. The system also includes a headset applicator comprising a headband and a headset. The headset has a magnetic slot configured to be mounted to a magnetic mount of the headband. The headset includes left and right eyecup electrodes each of which has a contact surface that is positioned for contact with a skin surface within left and right eye regions, respectively. Preferably, the contact surface of each of the left and right eyecup electrodes comprises an upper contact pad and a lower contact pad that have a total area in the range of about 1.10 cm2 to about 1.80 cm2. The headset is connectable to the signal generator and configured to deliver the treatment waveform to one or both of the left and right electrodes.