About the Diopsys^® NOVA-VEP

The Diopsys^® NOVA-VEP Vision Testing System uses a technology called Visual Evoked Potential (VEP) to objectively measure the functional responses of the entire visual pathway from the anterior segment of the eye to the visual cortex. By using VEP, the device provides quantitative information to support the interpretation and management of eye and vision deficits, and reports and documents the results of practitioner intervention for tracking patients’ response. It is easy to use, non-invasive, and provides a quick qualitative analysis of the VEP waveform and easy quantitative analysis of the amplitude (strength) and latency (speed) values.

The Diopsys^® NOVA-VEP also helps provide objective data to aid the physician in the detection of vision abnormalities that are often subtle and difficult to detect since no verbal response or “button pushing” is required from the patient, enabling testing of preverbal children, infants, and patients with communication difficulties.

The Diopsys^® NOVA-LX is an easy-to-follow, fixed protocol VEP module that automatically guides the technician through the procedure, and takes 38-53 seconds per eye, or approximately 5 minutes from set-up to results. The procedure uses both low contrast and high contrast patterns to indicate the health of the magnocellular and parvocellular pathways. Clinicians may quickly view color-coded VEP results to enhance medical decision making and treatment planning.

The Diopsys^® NOVA-TR objectively measures the neurological responses of the entire visual pathway using multiple testing options. It is easy to use, non-invasive, and testing times are flexible and depend upon the customized settings designated by the clinician. Patented technology for stimulus generation allows the clinician to manually customize the pattern reversal and frequency of checkerboard, horizontal, vertical, or sinusoidal patterns to the patient and pathology. The Diopsys^® NOVA-TR allows clinicians to specify therapy types and duration of treatment (i.e., patching, lens, surgery) to document the results of physician intervention, and support medical decision-making.

The Diopsys^® NOVA-VEP system is available in a portable cart point-of-use design.

Why is there a need for Diopsys^® NOVA-VEP Testing?

• Objectively measures the neurological responses of the entire visual pathway
• Enables testing of preverbal children, infants, and patients with communication difficulties
• Supplies objective measurements on patients’ response to physicians treatment (lenses, patching, vision therapy, prisms, etc.)
• Clinician can perform comparative VEP studies to assess therapy over time, and generate a profile for OD, OS, and OU responses

Who are we testing and what are we testing for?

Eye care specialists are testing children six months of age and older, patients with a degenerative process such as glaucoma or multiple sclerosis (MS), or patients following a neurological event like traumatic brain injury (TBI) or stroke in order to help the clinician detect visual deficits such as optic nerve disorders, amblyopia, and other neuro-visual disorders.