Setting up selection by blinking in eye tracking

With eye tracking, you can select cells by dwelling, blinking and by using a switch. At least one selection method must be chosen. If the user selects by blinking, then this is achieved by closing the eyes for an adjustable time.

  1. Choose Menu > Settings.
  2. Choose Access.
  3. Choose Eye tracking.
  4. In the Select options group, in Select by blinking, Yes.
  5. Set the following options:
    OptionProcedure
    Minimum blink time

    The user must close the eyes for at least the minimum blinking time to make a selection. Increase this time if spontaneous blinking with the eyes unintentionally selects a cell.

    Drag the slider to set the minimum blinking time. You can fine-tune the minimum blinking time with and .

    Maximum blink time

    If closing the eyes takes longer than the maximum blinking time, the cell is not selected. This prevents the user from selecting a cell when closing the eyes due to fatigue, for example.

    Drag the slider to set the maximum blinking time. You can fine-tune the maximum blinking time with and .

  6. Choose OK.