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Electroretinogram (ERG)

An electroretinogram (ERG) is a painless diagnostic procedure that evaluates the function of the retina, the light-sensitive lining on the back of the eye where light is focused. This test can aid in the diagnosis of several different retina conditions that can lead to serious complications, including permanent vision loss.

During the ERG procedure, the cells of the retina release electric responses to flashes of a light. By measuring these electrical responses to the light under varying conditions, your doctor can determine how well the retina is working. This is done by placing a contact lens on the eye to record responses to a series of lights. A multifocal ERG is a special type of ERG that measures and maps out the responses from multiple retinal areas using an array of light signals.

The entire ERG procedure typically takes 30-45 minutes to perform and is available to our patients at Wills Eye Hospital. This procedure is performed with dilated pupils in order to achieve the most accurate results.

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Schedule an Appointment with a Mid Atlantic Retina Specialist

Browse through the articles on this page to explore a wide range of topics related to retinal health. Visit other pages on our site, including our retinal disease page, for additional information as well.

Mid Atlantic Retina is made up of top Wills Eye Physicians, known for being the best retina doctors in the country. To seek further retina information and personalized care from a board-certified retinal specialist, make an appointment at one of our convenient locations in the Pennsylvania, Delaware, or the New Jersey area. Our specialists offer the most advanced treatments for adult and pediatric retinal diseases, and we pride ourselves on providing all of our patients with the highest level of care. This includes efficient diagnostics and the latest in treatments and procedures, with state-of-the-art services tailored to your needs.

Contact us today to schedule your first appointment.