If you are severely paralysed, the best option may be a gaze tracker. Do you have control of where your eyes are looking? With a gaze tracker we can write at 25 words per minute. Gaze trackers are quite expensive: we paid $2000 for the QuickGlance from EyeTech Digital Systems, and the Tobii eyetracker costs about $20,000. [We recommend both of these systems. You attach QuickGlance to an existing computer; Quickglance II costs about $4000. Tobii is a complete computer with built-in eyetracking cameras.] Dasher also works with the Eye response Erica, with LC's Eyegaze, and with Metrovision's gaze-tracker. All three of these systems are complete computers with eye-tracking cameras attached.
Paralisi oso larria baduzu, agian begirada-jarraitzaile bat izan daiteke aukerarik onena. Kontrolatzen duzu nora begiratzen duten zure begiek? Begirada-jarraitzaile batekin 25 hitz idatz daitezke minutuko. Begirada-jarraitzaileak nahiko garestiak dira: EyeTech Digital Systems-en QuickGlance-k 1.700 € inguru balio du, eta Tobii begi aztarnariak 17.000 inguru. [Bi sistemak gomendatzen ditugu. QuickGlance ordenagailu batekin lot dezakezu; Quickglance IIk 3.400 € inguru balio du. Tobii ordenagailu oso bat da, eta begi aztarnaridun kamerak dauzka barneratuta.] Dasher-ek Erica Eye response-rekin ere lan egiten du, Eyegaze LCekin, eta Metrovision-en begirada-jarraitzailearekin. Hiru sistema horiek ordenagailu osoak dira, eta begi aztarnaridun kamerak dauzkate barneratuta.