LKC TECHNOLOGIES RETeval Quick Reference Manual

1. SET UP
1 Press the power button near the bottom
right of the screen.
2 Connect the RETeval adapter cable for
DIN electrodes as shown to the right
(cable towards the top of device).
The electrodes and supplies required for VEP testing are not included with
the RETeval device package. Please order the RETeval Flash VEP Electrode
& supply kit from your distributor or from LKC at store.LKC.com.
2. CONFIGURE DEVICE FOR TESTING
1 Choose the testing protocol you'd like to use:
• Go to "Protocol" then "Change" then "Common ISCEV"
• Choose either ISCEV Flash VEP protocol and then "Save"
TIP: Candela protocols (ending in cd . s/m
be used with DILATED patients. Troland protocols
(ending in Td . s) can be used with either
NON-DILATED or DILATED patients.
2 Select "New Test" on the main menu.
3 Use the joystick or
patient data barcode
application (https://
lkc.com/barcode)
to enter the patient
ID and birthdate.
4 Confirm that the protocol,
patient ID, and birthdate are
correct. Select "Next" to proceed.
5 Select the appropriate electrode.
VEP QUICK REFERENCE GUIDE
2 ) should
34/50
ISCEV Flash VEP: 24 Td•s
73219872
2/29/72
Select electrode type
Disc
DTL
ERG-jet
Gold cup
Gold foil
Henkes
HK-loop
Other
3. PATIENT PREPARATION
1 Prior to beginning the test, the patient's eyes should NOT
be dark adapted.
2
The test should take place in a dimly lit room.
3 Clean the top of the forehead and one earlobe using
NuPrep skin preparation gel.
4 Identify the Oz position, part the patient's hair, and clean
with a skin cleanser pad.
• For an adult with a normal-sized head, the Oz is
located about 2.5 cm above the inion on the midline.
• For children, the Oz point is located on the midline,
10% of the distance above the inion towards the nasion.
Fp
Nasion
4. CONNECT ELECTRODES
1
Connect the electrodes as follows:
a Active recording electrode
Place the recording electrode to the identified Oz
position (positive).
• In case of a gold cup electrode, apply electrode
conductive adhesive paste inside the gold cup.
• Separate the hair away from the recording site and
press the electrode in place. The electrode should
contact (mostly) scalp and not sit on top of hair.
b Reference electrode
Place reference electrode on the forehead, just below
the hairline (usually an ECG electrode with a ground
reference lead attached).
c
Ground electrode
Apply electrode gel to the ear clip and place it on
the earlobe.
b
Fp
2
The screen will present options prior to connecting the
electrodes to the RETeval adapter cable for DIN electrodes.
"Cancel" will cancel the entire test. "Done OD/OS" will skip
all tests of the specified eye. "Skip" allows the user to skip
current test step.
Cz
Oz
10 % above
Inion
Cz
a
Oz
c