The Enfant^® Pediatric VEP Vision Testing System, is an easy-to-operate, child-friendly, non-invasive medical device used to test for visual deficits in children six months of age and older. The test does not require dilation or sedation. The Enfant^® is the only objective visual testing device capable of evaluating the entire visual pathway available today. In addition, currently existing CPT codes enable medical practitioners to be reimbursed for this test.

How it works: After positioning three sensory pads on the child’s head, an operator initiates the test. Cartoon characters appear and music plays while a series of six “attention-catching” stimuli are presented to the child on a video display. The Enfant^®, using Visual Evoked Potential technology (VEP), recognizes the neurological responses and processes the VEP data.

At the completion of each test, simple “pass/fail” results are immediately presented on the menu-driven operator screen in both graphic and numeric formats. The results are then printed out for the patient’s medical record.

The Enfant^® system is available in both a portable cart point-of-use design, and a number of counter/table and wall mount configurations that can be customized to fit offices or exam rooms. CLICK HERE to request more information.

Why is there a need for VEP Testing?

• Approximately 25% of preschool children will experience some form of visual problems.
• Approximately 200,000 children born each year in the United States have visual deficits that can lead to amblyopia if untreated. More than 90% of these problems are not detected until treatment becomes more difficult.
• Amblyopia ranks as the leading cause of monocular blindness.
• The earlier visual deficits are detected, the greater the success in treatment and correction.
• Today, only four percent of children with vision problems are referred to a pediatric ophthalmologist.

Who are we testing and what are we testing for?

We are testing children six months of age and older in order to detect visual deficits such as optic nerve disorders, severe refractive errors, and other problems that could lead to amblyopia.

Test Result Graphic Presentation

The following are sample test results which are immediately presented on the Enfant^® operators’ screen, in both graphic and numeric formats, at the conclusion of each VEP test.

Example of Normal Patient
Both magnitude (left) and phase (right) of VEP responses for the two eyes are statistically similar through all spatial frequencies.



Example of Abnormal Patient
Magnitude of VEP responses (diagram on left) is higher in the right (red tracing) than in the left (blue tracing) eye at all spatial frequencies, indicating poor vision in the left eye. Phase difference (diagram on right) is also significant at multiple spatial frequencies.