Zeiss HUMPHREY 720i User Manual - page 239

11-31

REV. B 02/03 PN 51680-1

HUMPHREY FIELD ANALYZER II - 

i series

KINETIC TESTING

The Special Mapping feature has a built-in program to find and map the blind spot. Most often

the I4E stimulus, which is the smallest but most intense Goldmann stimulus, can be used to

plot the blind spot. A larger target may be required if the I4E isopter is too small and fails to

enclose the blind spot.

The Humphrey Field Analyzer II will move the stimulus to a point approximately 15˚ temporal

to fixation and just below the horizontal axis for the eye being tested. Starting at this center

point, the stimulus will move out toward the periphery in each of the directions shown on the

Meridian Pattern button. It stops when the patient pushes the response button. In this way, the

HFA II will map the blind spot borders.

1

From the Special

Mapping screen, press

BLIND SPOT MAP.

2

 The Kinetic Parameters

Setup screen will appear.

Use the drop-down menus to

make any changes. See “Setting

Parameters” in this section for

details.

3

 Prepare the patient for the test. Explain that the light will not be seen for a short time and

then it will move into the patient's field of vision. Ask the patient to press the response

button as soon as the light is seen. See Section 3, “Preparing the Patient”, for details.

Blind spot map

11.htp

3/13/03, 3:01 PM

31