Electroretinography Center - Berwyn, IL
Berwyn 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 Berwyn * Joseph R Mejia MD  Dennis M Wolf MD  Nootens Weiss & Lacayo MDs  Nootens Weiss & Lacayo MDs  Nootens Weiss & Lacayo MDs  Igoe Eye Care  Illinois Retina Associates SC  Oak Park Eye Center  Oak Park Eye Center  Oak Park Eye Center  Oak Park Eye Center  Rutheva Dizon-Moore MD  Kirk Eye Center  Kirk Eye Center  West Suburban Eye Associates LLC  West Suburban Eye Associates LLC  West Suburban Eye Associates LLC  West Suburban Eye Associates LLC  Fagman Eye Surgery Association  Gary Rubin MD  Thomas Mizen MD  Marcos A Lopez MD  Panton Eye Center  Panton Eye Center  Panton Eye Center  Glavin Eye Clinic  Anstadt Proctor & Tennenbaum MDs  Anstadt Proctor & Tennenbaum MDs  Anstadt Proctor & Tennenbaum MDs  Westchester Eye & Laser Center  Westchester Eye & Laser Center  Kraff Eye Institute  Kraff Eye Institute  Krates Eye Center  M A Mirza MD  Lieberman Eye Associates  Lieberman Eye Associates  Lieberman Eye Associates  Benjamin Eye Care Center  Ashwin S Patel MD  University of Illinois Chicago Eye Center  University of Illinois Chicago Eye Center  University of Illinois Chicago Eye Center  University of Illinois Chicago Eye Center  University of Illinois Chicago Eye Center  University of Illinois Chicago Eye Center  University of Illinois Chicago Eye Center  University of Illinois Chicago Eye Center  UIC Pediatric Ophthalmology  UIC Pediatric Ophthalmology  University of Illinois Chicago Eye Center  University of Illinois Chicago Eye Center  University of Illinois Chicago Eye Center  University of Illinois Chicago Eye Center  University of Illinois Chicago Eye Center  University of Illinois Chicago Eye Center  University of Illinois Chicago Eye Center  University of Illinois Chicago Eye Center  University of Illinois Chicago Eye Center  UIC Pediatric Ophthalmology  UIC Pediatric Ophthalmology  UIC Pediatric Ophthalmology  C Ronald Lindberg MD SC  UIC Pediatric Ophthalmology  University of Illinois Chicago Eye Center  University of Illinois Chicago Eye Center  UIC Pediatric Ophthalmology  University of Illinois Chicago Eye Center  University of Illinois Chicago Eye Center  University of Illinois Chicago Eye Center  Wicker Park Eye Center Ltd  Chicago Glaucoma Consultants  Chicago Cornea Consultants  University Ophthalmology Associates  Chicago Cornea Consultants  Chicago Glaucoma Consultants  University Ophthalmology Associates  University Ophthalmology Associates  Chicago Cornea Consultants  Chicago Cornea Consultants  Illinois Retina Associates SC  Chicago Cornea Consultants  University Ophthalmology Associates  University Ophthalmology Associates  University Ophthalmology Associates  Smith-Perry Eye Center  Ralph N Dado Jr. MD  Retina Vitreous Associates  Illinois Retina Associates SC  Retina Vitreous Associates  Raymond Moeller MD  Audrey Wayne MD  John Fournier MD  University Retina & Macula Associates PC  George Dangles MD PC  George Dangles MD PC  Chicago Retina  The Eye Specialists Center  The Eye Specialists Center  Elmhurst Clinic Ophthalmology Berwyn, IllinoisUpcoming Local Events2012-06-03
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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 Berwyn
Nearby Berwyn Hospitals *MacNeal Hospital Hartgrove Hospital Edward Hines Jr VA Hospital John J Madden Mental Health Center Riveredge Hospital Loretto Hospital Loyola University Medical Center RUSH Oak Park Hospital Resurrection Health Care West Suburban Medical Center Resurrection Health Care Westlake Hospital Advocate Bethany Hospital Saint Anthony Hospital Schwab Rehabilitation Hospital Gottlieb Memorial Hospital Sacred Heart Hospital Shriners Hospital for Children Chicago Adventist LaGrange Memorial Hospital Jesse Brown VA Medical Center Mount Sinai Hospital Medical Center Norwegian-American Hospital John H Stroger Jr Hospital of Cook County University of Illinois Medical Center Johnston R Bowman Health Center Kindred Hospital Northlake Rush University Medical Center Resurrection Health Care Saint Mary of Nazareth Hospital Center Resurrection Health Care Saint Elizabeth Hospital Adventist Hinsdale Hospital Holy Cross Hospital Resurrection Health Care Our Lady of Resurrection Medical Center Kindred Hospital Chicago Central RML Specialty Hospital Chicago-Read Mental Health Center Elmhurst Memorial Hospital Advocate Christ Medical Center & Hope Children's Hospital Mercy Hospital & Medical Center Children's Memorial Hospital St Bernard Hospital & Health Care Center Lincoln Park Hospital Northwestern Memorial Hospital Prentice Women's Hospital Rehabilitation Institute of Chicago Kindred Hospital Chicago North Provident Hospital of Cook County Advocate Illinois Masonic Medical Center Little Company of Mary Hospital & Health Care Centers CINN Neurologic & Orthopedic Institute of Chicago Resurrection Health Care Resurrection Medical Center Resurrection Health Care Saint Joseph Hospital University of Chicago Comer Children's Hospital Swedish Covenant Hospital University of Chicago Hospital Bernard Mitchell Thorek Memorial Hospital Methodist Hospital of Chicago Weiss Memorial Hospital Advocate Good Samaritan Hospital Chicago Lakeshore Hospital Jackson Park Hospital & Medical Center Palos Community Hospital Kindred Hospital Chicago Lakeshore La Rabida Children's Hospital South Shore Hospital Roseland Community Hospital Resurrection Health Care Saint Francis Hospital Advocate Lutheran General Hospital MetroSouth Medical Center Advocate Trinity Hospital Adventist GlenOaks Hospital RUSH North Shore Medical Center Alexian Brothers Medical Center Alexian Rehabilitation Hospital Resurrection Health Care Holy Family Medical Center NorthShore University HealthSystems Marianjoy Rehabilitation Hospital Oak Forest Hospital of Cook County Featured Articles*Provider Directory Terms of Use: The WebMD 'Provider Directory' is provided by WebMD for use by the general public as a quick reference of information about Providers. The Provider Directory is not intended as a tool for verifying the credentials, qualifications, or abilities of any Provider contained therein. Inclusion in the Provider Directory does not imply recommendation or endorsement nor does omission in the Provider Directory imply WebMD disapproval. |
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