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Installation, Features, & Functions
Configuring the ClearChart 4P
ACUITY NOTATION
Using the LEFT/RIGHT arrows on your remote, select SNELLEN, METRIC, or DECIMAL for your
acuity notation. When you are finished, press the DOWN arrow.
•
Snellen - displayed as distance in feet / size in mm
•
Metric - displayed as distance in meters / size in mm
•
Decimal - displayed as the decimal equivalent for the distance in feet / size in mm
The 20/10 optotypes may not be available at test distances under 12 feet (3.66 meters) and the 20/400
optotypes may not be available at test distance over 22 feet (6.71 meters).
DISTANCE
Use the MAX and MIN buttons to adjust the testing distance from the patient's eye to the screen. The
units are either inches or centimeters depending on whether you chose ENGLISH or METRIC earlier in
the setup procedure. When you are finished, press the DOWN arrow.
Note: If MIRRORED was selected in the ROOM setup category entered above, then two distances will
be required. First enter the distance from the patient to the mirror, then enter the distance from
the mirror to the screen. Press the DOWN arrow after each distance is entered.
OPTOTYPES
The EDIT LIST option allows the user to select the Optotypes that will be readily available when
pressing the OPTO button on the remote. Use the UP/DOWN arrow buttons to navigate through the
list. Press the OPTO button to select or deselect the optotypes that you wish to display. An asterisk
will indicate the optotypes that are activated. The order of the optotypes in the list can be changed by
highlighting an optotype with the UP or DOWN arrow keys and pressing the MAX or MIN button to
move the optotype up or down the list.
Available optotypes are:
•
17 Letter
•
8 Letter
•
Sloan
Note: You will be able to access any optotype while using the ClearChart 4P. When you are finished,
press the DOWN arrow.
CHILD OPTOTYPES
Using the LEFT/RIGHT arrows on your remote, select the child optotype you would like the ClearChart
4P to display when you press CHILD on your remote. Available optotypes are:
•
Kolt Type Symbols
•
Children's Shapes
•
Allen Symbols
•
Osterberg
When you are finished, press the DOWN arrow.
13785-101 Rev. F
(continued)
•
Landolt C
•
O Landolt C
•
HOTV
•
Pigassou
•
Sheridan Gardiner
•
Lower Case Letters
•
Cyrillic
•
Numbers
• Tumbling E
(continued)
21
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