•Knowing your client is very important
−Visual affect – left, right, top or bottom
−Visual ability – one or both eyes
•Know what your client wants to accomplish
−If your client wants to do Windows control and computer access, a higher quality calibration is likely needed.
−If your client is using simple, big button AAC pages, a lower quality calibration may suffice.
•Know how you can make the experience better
−Calibration Points – 1, 2, 5 or 9
−Calibration Area – it can be adjusted to make calibrating easier
−Stimulus Type – dot, image, or video
−Stimulus Size – making the dot larger makes it easier to see and focus on
−Stimulus Speed can be adjusted
−Keyboard Step Through – allows an aide to step through the calibration points when the end user is ready/attentive
−Improve/Remove Points – this option allows for fine tuning of points without redoing the entire calibration
What are we looking for from the calibration results?
•Lots of lines
•Short and within the circles
If we do not get that…
•Check the calibration points and select the ones that need to be redone
•Choose improve points and have the client look at those
•Use fewer calibration points or change stimulus to make it easier
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