New Tests: VEP/ERG

Office Park Eye Center is pleased to offer the new addition of Diopsys Nova Visual Evoked Potential (VEP) and Electroretinography (ERG) testing. VEP/ERG testing evaluates the communication between the eyes and the brain (also known as the visual pathway). This allows our doctors to assess vision disorders such as glaucoma, macular degeneration, and other neurological disorders.

Vision loss from glaucoma is permanent and is also the second leading cause of blindness in the world. Glaucoma often goes undetected for a period of time, because it affects the peripheral portion of vision first. Most people do not notice a loss of vision until the later stages of the disease where central vision is affected; this is often referred to as tunnel vision. Certain individuals are at an increased risk for developing glaucoma, or are considered “glaucoma suspects” based on several risk factors. Risk factors include increased eye pressure, optic nerve asymmetry between eyes, or a family history of glaucoma. The earlier glaucoma is detected, the better it can be treated. This ultimately results in less permanent and irreversible vision loss. VEP/ERG testing has been shown to detect glaucoma up to 8 years sooner than other glaucoma tests.

What does the VEP/ERG testing entail?  The tests are painless, non-invasive, and usually only last about 30minutes; you don’t even have to wait to see a doctor during this visit. Diopsys testing involves sensory pads placed on your head and below your eyelids. First the technician will clean the areas where the sensory pads will be placed. After placing the pads, the test will begin. Once started you will see a series of rapidly changing patterns on a computer screen and the sensory pads will record your eyes response. It’s that simple!