The electroretinogram (ERG) is a diagnostic test that measures the electrical activity of the retina in response to a light stimulus. The ERG arises from currents generated directly by retinal neurons in combination with contributions from retinal glia.

Apr 20, 2020 · What is electroretinography? An electroretinography (ERG) test, also known as an electroretinogram, measures the electrical response of the light-sensitive cells in your eyes. These cells are...

Read about electroretinography (ERG), an eye test where electrodes placed on the cornea measure electrical responses to light to try to detect abnormal retinal function.

What is an Electroretinogram? The electroretinogram (ERG) is an examination that evaluates the function of the eye’s retinal cells. Patients’ eyes are stimulated with light and the resulting electrical activity from their retinal cells is measured by skin or corneal electrodes.

Electrodes are placed on the surface of the cornea (DTL silver/nylon fiber string or ERG jet) or on the skin beneath the eye (sensor strips) to measure retinal responses. Retinal pigment epithelium (RPE) responses are measured with an EOG test with …

The electroretinography (ERG) test measures the electrical response of the retina to light. It is performed by placing an electrode on the cornea of the eye after it has been numbed with eye drops.

Feb 19, 2024 · Electroretinography provides objective and quantifiable assessments of visual function and retinal well-being. With the help of such evaluations, ophthalmologists can make …

During the test, an electrode is placed on the cornea (the front of the eye) to measure your retinal cells’ electrical response to light. An ERG is useful in evaluating inherited (hereditary) and acquired disorders of the retina.

Electroretinography is a test to measure the electrical response of the eye's light-sensitive cells, called rods and cones. These cells are part of the retina (the back part of the eye).

An electroretinogram measures the response of your retina to light. Learn about the types of ERGs and what happens during each procedure from UW Health.