An electronic appliance having a communication function conforming to a wide band wireless communication system is disclosed. Each consumer terminal includes a means for transmitting the position data to the communication dealer terminal, a means for displaying received advertisement data, and a means for transmitting a reservation request of a goods or the like selected by the consumer from the advertisement data to the communication dealer terminal. The first and second data loop share a forward path having a data-inverting circuit and a feedback loop having a switch. The fluid distribution channels are aligned with similar channels within a bushing securable to the fluid distribution disc radial portion. Formulations containing ophthalmically active agents are provided.