Enfant™ Pediatric Vision Testing System (DIOPHYSIS™) uses VEP(Visual Evoked Potential) TESTING -  The test measures the brain's response to visual stimuli., VEP   Testing  is 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. experience

Why is there a need for VEP Vision Testing?

• Approximately 25% of preschool children will 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 or lazy eye 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 0.8 cycles/degree.

Pediatric VEP Vision Testing System, a device used in vision screening for amblyopia in children as young as six months of age, for the detection, diagnosis and treatment of vision disorders.


Eye-Opening Facts about Amblyopia in Children

♦ Amblyopia:  More commonly referred to as "lazy eye," is decreased vision that results when one (or both) eyes sends a blurry image to the brain, inhibiting development of the vision system, it is the most common vision problem in children.  An estimated 4 in 100 children under the age of six have amblyopia.

♦ Prevent Blindness America says that only 1 in 5 children in the U.S. have a vision test before kindergarten.

♦ More than 3.8 million adults are legally blind or visually incapacitated in at least one eye due to amblyopia that was left untreatedP Testing