Eyewear system comprising: an eyewear including: a frame; a pair of nose pads; a first electrode and a second electrode respectively provided on the surface of the pair of nose pads, the first electrode and the second electrode operable to detect eye potential; and a third electrode provided on the surface of a bridge of the frame and operable to detect eye potential; and the eyewear system further comprising a processing unit including a processing section and an apparatus, wherein the first, second and third electrode are connected to the processing section, which is operable to process electrooculogram signals representing a right eye potential V1 and a left eye potential V2, the right eye potential V1 being a potential of the first electrode relative to the third electrode and the left eye potential V2 being a potential of the second electrode relative to the third electrode, and which is operable to transmit the electrooculogram signals to the apparatus, wherein the apparatus is operable to determine that a human wearing the eyewear is looking up when V1+V2 indicates a negative value and V1-V2 equals substantially zero, determine that a human wearing the eyewear is looking down when V1+V2 indicates a positive value and V1-V2 equals substantially zero, determine that a human wearing the eyewear is looking to the right when V1+V2 equals substantially zero and V1-V2 indicates a negative value, and determine that a human wearing the eyewear is looking to the left when V1+V2 equals substantially zero and V1-V2 indicates a positive value. an eyewear including: a frame; a pair of nose pads; a first electrode and a second electrode respectively provided on the surface of the pair of nose pads, the first electrode and the second electrode operable to detect eye potential; and a third electrode provided on the surface of a bridge of the frame and operable to detect eye potential; and a frame; a pair of nose pads; a first electrode and a second electrode respectively provided on the surface of the pair of nose pads, the first electrode and the second electrode operable to detect eye potential; and a third electrode provided on the surface of a bridge of the frame and operable to detect eye potential; and the eyewear system further comprising a processing unit including a processing section and an apparatus, wherein the first, second and third electrode are connected to the processing section, which is operable to process electrooculogram signals representing a right eye potential V1 and a left eye potential V2, the right eye potential V1 being a potential of the first electrode relative to the third electrode and the left eye potential V2 being a potential of the second electrode relative to the third electrode, and which is operable to transmit the electrooculogram signals to the apparatus, wherein the apparatus is operable to determine that a human wearing the eyewear is looking up when V1+V2 indicates a negative value and V1-V2 equals substantially zero, determine that a human wearing the eyewear is looking down when V1+V2 indicates a positive value and V1-V2 equals substantially zero, determine that a human wearing the eyewear is looking to the right when V1+V2 equals substantially zero and V1-V2 indicates a negative value, and determine that a human wearing the eyewear is looking to the left when V1+V2 equals substantially zero and V1-V2 indicates a positive value.