Zeiss HUMPHREY 720i User Manual - page 32

GENERAL OPERATION

REV. B 02/03 PN 51680-1

HUMPHREY FIELD ANALYZER II -

 i

series

2-6

Using the external keyboard

The external keyboard will operate many of the buttons on the HFA II screen. An outline

(or highlight) surrounding the active button indicates the action to be performed. The example

below shows the highlight around the PATIENT NAME button. Pressing the ENTER key or SPACE

BAR will activate the highlighted button. The TAB key allows you to move the highlight from

button to button in a forward direction. Holding the SHIFT key down while pressing the TAB

key will cause the highlight to move in the opposite direction.

The arrow keys, in most cases, can be used to move the highlight from button to button. They

mimic the action of the TAB and SHIFT-TAB keys for moving the highlight. Like the TAB key,

both the DOWN and RIGHT arrows move the highlight forward. The UP and LEFT arrows

reverse the direction of the highlight as the SHIFT-TAB combination does.

The arrow keys will not advance the highlight on screens having drop-down menus (for

example, the Parameter Setup and System Setup screens). Instead, use the TAB or SHIFT-TAB

keys to move the highlight around the screen. The arrow keys are used to select the choice

within the window as described below.

The PAGE DOWN key on the external keyboard must be pressed if you wish to change the

setting on a drop-down list with the external keyboard. This applies to all of the fields on the

Parameter Setup screens, the drop-down lists at the top of the System Setup screen, and the

Disk Options windows. For example, if you wish to change the fixation target from CENTRAL to

LARGE DIAMOND by using the external keyboard, you would first use the TAB key to move the

highlight to the FIXATION TARGET drop-down menu. Press PAGE DOWN to activate the

selection feature. The UP and DOWN arrow keys will scroll the highlight through the choices

on the selection menu. Choose the highlighted selection by pressing the ENTER key.

The keyboard may be used to enter patient data. Both upper and lower case letters may be

entered with the keyboard. You may find that it is more efficient to use the keyboard in

combination with the touch screen, especially for applications such as entering trial lens data.

After data (such as PATIENT

NAME) is entered, the

highlight will remain around

the button just activated. To

advance to the next button,

you simply press the TAB key.

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