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Patient preparation
The operator and the patient should be aware of the below-listed points before starting a test.
General:
1. Ensure that the goggles are sanitized. Disposable foam pads used with the side mounted camera
goggles are meant for single use and should be replaced after testing every single patient to avoid
cross infection. Equipment should be cleaned and disinfected following the instructions in section
4.1: How to clean the VisualEyes™ system.
2. It is important to consider the patient's clinical condition/history before testing and ensure compliance
according to the contraindications described in section 1.3: Contraindications.
3. Patients should remove any eye makeup before starting a test. Cosmetic tattoos or permanent
makeup may interfere with eye tracking and should be disclosed by the patient to the testing facility
before testing.
4. Patients cannot use corrective eyeglasses during testing but corrective contact lenses can be worn
to improve visual acuity.
5. Before starting a test, it is very important that the patient is provided with all the relevant information
about a test and what he/she/guardian can expect out of a test such as general precautions, adverse
effects etc. Especially, additional care should be given for irrigation and positional tests (e.g. caloric
test, rotary chair tests, etc.).
6. Always remove the vision-denied cover to allow vision during the placement of goggles.
7. Place the goggles on the patient's face and adjust the strap for a snug fit. For vision-denied testing,
place the cover back on the goggles. Confirm with the patient that there is no light leakage. If the
patient still sees light, adjust the goggles' position and tightness of the strap as needed.
8. Headband straps should be checked with each patient for the best fit. If the headband strap does not
remain fastened, then it should be replaced. Replacement headband straps are available from the
manufacturer.
9. It is recommended that the testing room is darkened for all vision-denied tests.
10. Be sure to only use stimulation movements that are acceptable to the patient.
Additional for rotary chair systems:
1. The operator should be aware of all emergency stop options and safety features if available with the
product (refer to section 1.6 for more details).
2. Ensure that the patient is informed about the emergency stop feature, which is accessible to her/him.
The patient can stop the test if she/he cannot tolerate the test.
3. Patients with a history of motion sickness should be informed if the test battery includes rotary tests
and the patient should be monitored with additional care during the test. If the patient feels any
discomfort, the technician/clinician should stop the test either using this software or using the
Emergency Stop button to stop the chair.
4. Ensure that the rotary chair is locked in the desired position before starting any test using a rotational
chair to avoid unintended turns.
5. The operator should ensure that there are no objects placed that will potentially interfere when the
chair is reclining or spinning.
6. The operator should pay attention to alerts from the software if he/she tries to spin the rotational
chair when it is reclined. However, the safety feature available in the Orion / System 2000 reclining
chair will not allow the rotary chair to spin in the reclining position.
D-0134090-A – 2022/11
VisualEyes™ - Instructions for Use - EN
Page 67
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