Electroretinography Center - Pomona, CA
Pomona Eye Doctor Doctors for ElectroretinographyType of Physician: Eye Doctor What is a Eye Doctor? A certification by the Board of Ophthalmology; practitioners provide comprehensive eye and vision care. They are trained to diagnose, monitor and medically or surgically treat all eyelid and orbital problems affecting the eye and visual pathways, and to diagnose, monitor and treat all eye and visual disorders. They often prescribe vision services (glasses and contact lenses) as well as serve as a consultant to physicians and other professionals. Specialty: Ophthalmology Common Name: Eye Doctor Eye Doctor Doctors in Pomona * California Laser Eye Associates  Dennis Chuck MD  Mark H Barak MD  Claremont Eye Associates  Claremont Eye Associates  Claremont Eye Associates  Robert A Innocenzi MD  Wayne Martin MD  Childrens Eye Institute  Pacific Eye Institute  Pacific Eye Institute  Pacific Eye Institute  Pacific Eye Institute  Pacific Eye Institute  Carl S Shibata MD  Childrens Eye Institute  Pacific Eye Institute  Atlantis Eye Care  Atlantis Eye Care  Foothill Eye Surgical Center  Kurwa Eye Center  York Laser Eye Medical  California Eye Specialists  California Eye Specialists  California Eye Specialists  California Eye Specialists  Dualan & Frey MDs  Magan Medical Clinic  I Q Laser Vision  Susie Y Wong  John D Zdral MD John Esser MD  Vision Care Network  OIC Eye Group  John S Marshburn MD  Jose C Briones Jr. MD  Peter T Chen MD  Glen Jarus MD  Garlan Lo MD  Jan S Lukac MD  Arthur D Charap MD  Retina Consultants of Orange County  Sam Goldberger MD  Retina Consultants of Orange County  Lingua Vision Surgical Group  Ocular Surgery Medical Associates  J Nickolas Berbos MD  Fullerton Eye Medical Center  William Mosier MD  Ocular Surgery Medical Associates  Southern California Eye Care  Tri-County Eye Institute  David Marshburn DO  Chien Ko Wu & Meei Ling Wu MDs  A M Palanca-Capistrano MD Inc  William N May MD  Inland Valley Retina Medical Associates Inc  Khanna Institute of Lasik  Inland Valley Retina Medical Associates Inc  Inland Valley Retina Medical Associates Inc  Hyong S Choe MD  Randolph J Falk MD  NuVision Laser  El Monte Eye Clinic  George H Garcia MD Inc  George H Garcia MD Inc  Retina Institute  Florencio C Ching MD  Frederick Raymond MD  Nicholas Kokoris MD & Associates  John Kleinberg MD  Nicholas Kokoris MD & Associates  Sheldon Nankin MD  David A Sami MD  Aisha Simjee MD  Charles E Keller MD  Jeffrey V Winston MD  Jeffrey V Winston MD  Felizardo S Camilon MD  UCI Medical Center Ophthalmology  Sally I Kim MD  Advanced Eye Center  Atlantis Eyecare  Arcadia Eye Center  Doheny Eye Center Arcadia  Phillips Eye Center  Doheny Eye Center Arcadia  Phillips Eye Center  Doheny Eye Center Arcadia  Orange County Retina Medical Group  Orange County Retina Medical Group  Orange County Retina Medical Group  David Sacks MD  Sierra Eye & Laser Institute  Paul A Brailsford MD  Pacific Eye Medical Group  Michael B Lappin MD  Pacific Eye Medical Group  Retina Associates of Orange County  Dai Le Tran MD  Orange County Ophthalmology Pomona, CaliforniaUpcoming Local Events2012-05-28
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ElectroretinographyRead the Electroretinography article » What is electroretinography?Electroretinography (ERG) is an eye test used to detect abnormal function of the retina (the light-detecting portion of the eye). Specifically, in this test, the light-sensitive cells of the eye, the rods and cones, and their connecting ganglion cells in the retina are examined. During the test, an electrode is placed on the cornea (at the front of the eye) to measure the electrical responses to light of the cells that sense light in the retina at the back of the eye. These cells are called the rods and cones. How is an ERG done?The patient assumes a comfortable position (lying down or sitting up). Usually the patient's eyes are dilated beforehand with standard dilating eye drops. Anesthetic drops are then placed in the eyes, causing them to become numb. The eyelids are then propped open with a speculum, and an electrode is gently placed on each eye with a device very similar to a contact lens. An additional electrode is placed on the skin to provide a ground for the very faint electrical signals produced by the retina. During an ERG recording session, the patient watches a standardized light stimulus, and the resulting signal is interpreted in terms of its amplitude (voltage) and time course. This test can even be performed in cooperative children, as well as sedated or anesthetized infants. The visual stimuli include flashes, called a flash ERG, and reversing checkerboard patterns, known as a pattern ERG.
What do the electrodes do?The electrodes measure the electrical activity of the retina in response to light. The information that comes from each electrode is transmitted to a monitor where it is displayed as two types of waves, labeled the A waves and B waves.
How are eletroretinography readings made?Readings during eletroretinography are usually taken first in normal room light. The lights... Recommended Reading Related to ElectroretinographyWhat is a visual field test?A visual field test is a method of measuring an individual's entire scope of vision, that is their central and peripheral (side) vision. Visual field testing actually maps the visual fields of each eye individually. The visual field test is a subjective examination, requiring the patient to understand the testing instructions, fully cooperate, and complete the entire test in order to provide useful information. What is a visual field test used for?Visual field testing is most frequently used to detect any signs of glaucoma damage to the optic nerve. In addition, visual field tests are useful for detection of central or peripheral retinal disease, eyelid conditions such as ptosis or drooping, optic nerve disease, and diseases affecting the visual pathways within the brain. The visual pathways carry information from the eye to the visual or occipital cortex in the brain, where this information is proces... Other Related Electroretinography ArticlesEmergency Contact for Pomona
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