Electrophysiology Testing — Retina Macula Institute | 合法醫療器材資訊網

Electroretinography(ERG)isaneyetestthatisusedtodetectabnormalfunctionoftheretina,whichisthelight-detectingportionoftheeye.Inthistest,therods, ...

Electroretinography (ERG) is an eye test that is used to detect abnormal function of the retina, which is the light-detecting portion of the eye. In this test, the rods, cones and light sensitive cells of the eyes are examined. 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. An ERG can also be useful in determining whether retinal surgery is preferable over other types of ocular surgery. Cataract surgery, for instance, might be useful to improve a patient’s eyesight. Some diseases that the doctor might be testing for include: retinitis pigmentosa, Leber’s congenital amaurosis, choroideremia, Usher’s syndrome, night blindness, cone dystrophies, etc.

The multifocal ERG tests the macular area of the retina, specifically, as opp...