Electroretinography Center - Evanston, IL
Evanston 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 Evanston * Chicago Glaucoma Consultants  Chicago Glaucoma Consultants  Michael Stein MD  Vision Surgeons & Consultants  Daniel R Greenberg MD  Vision Surgeons & Consultants  Henry I Meisels MD  Dimitri G Perros MD SC  David Spindel MD  Gutstein & Sondheimer MDs  Gutstein & Sondheimer MDs  Lakeshore Eye Physicians  Eye Surgeons  Eye Surgeons  Eye Surgeons  Eye Care Ltd  Eye Care Ltd  University Ophthalmology Associates  Eye Care Ltd  University Ophthalmology Associates  Eye Care Ltd  University Ophthalmology Associates  University Ophthalmology Associates  Illinois Retina Associates SC  Myers Center For The Eye  Fagman Eye Surgery Association  Myers Center For The Eye  Myers Center For The Eye  Eye Clinic  Arthur Dorf MD  Ashwin S Patel MD  Tatjana Pavlovic MD  Eye Physicians & Surgeons of Chicago  Gerstein Eye Institute  Gerstein Eye Institute  Eye Physicians & Surgeons of Chicago  Eye Physicians & Surgeons of Chicago  Eye Physicians & Surgeons of Chicago  St George Eye Center  Pediatric Eye Associates  Pediatric Eye Associates  Seemin G Khan MD  Han K Lim MD  Ernest D Gutmann MD  Charles D Mullenix MD  Orrin M Scheff MD  Advanced Eye Care Assoc  Gregory Doren MD  Lawrence M Kaufman MD  Illinois Retina Associates SC  Eye Physicians & Surgeons of Chicago  Minou Colis MD  Minou Colis MD  Advanced Eye Care Ltd  H Berlin MD & Associates Ltd  H Berlin MD & Associates Ltd  Lieberman Eye Associates  Lieberman Eye Associates  Lieberman Eye Associates  The Office of Drs Lasky & Mets  The Office of Drs Lasky & Mets  The Office of Drs Lasky & Mets  The Office of Drs Lasky & Mets  Professional Eye Associates  Advanced Vision Specialists  Dougal McClellan Sullivan Eye Associates  Dougal McClellan Sullivan Eye Associates  John Fournier MD  Drs Graham & Petkus  Alexandra Ilkiw MD  Retinal Services LTD  Dougal McClellan Sullivan Eye Associates  Retinal Services LTD  Drs Graham & Petkus  Retinal Services LTD  Dougal McClellan Sullivan Eye Associates  Marcos A Lopez MD  David Moran MD  Wicker Park Eye Center Ltd  Chicago Retina  William Stiles MD  Mercy Center for Corrective Eye Surgery  Eye Specialists of Illinois  Eye Specialists of Illinois  Eye Specialists of Illinois  Midwest Center for Sight  Midwest Center for Sight  Midwest Center for Sight  Midwest Center for Sight  David J Palmer MD SC  David Mittelman MD  Evanston Northwestern Health Eye & Vision Ctr  North Suburban Ophthalmology  Evanston Northwestern Health Eye & Vision Ctr  Evanston Northwestern Health Eye & Vision Ctr  North Suburban Ophthalmology  North Suburban Ophthalmology  Kraff Eye Institute  Kraff Eye Institute  Ira Garoon MD Evanston, IllinoisUpcoming Local Events2012-06-03
2012-06-09
2012-07-03
2012-07-07
2012-07-12
2012-07-22
2012-08-24
2012-09-09
2012-09-15
2012-09-23
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 Evanston
Nearby Evanston Hospitals *NorthShore University HealthSystems Resurrection Health Care Saint Francis Hospital RUSH North Shore Medical Center Kindred Hospital Chicago Lakeshore Swedish Covenant Hospital Methodist Hospital of Chicago Chicago Lakeshore Hospital CINN Neurologic & Orthopedic Institute of Chicago Weiss Memorial Hospital Kindred Hospital Chicago North Thorek Memorial Hospital Resurrection Health Care Resurrection Medical Center Kindred Hospital Chicago Central Advocate Lutheran General Hospital Advocate Illinois Masonic Medical Center Glenbrook Hospital Resurrection Health Care Our Lady of Resurrection Medical Center Resurrection Health Care Saint Joseph Hospital Chicago-Read Mental Health Center Children's Memorial Hospital Lincoln Park Hospital Resurrection Health Care Saint Elizabeth Hospital Resurrection Health Care Holy Family Medical Center Resurrection Health Care Saint Mary of Nazareth Hospital Center Norwegian-American Hospital Highland Park Hospital Shriners Hospital for Children Chicago Prentice Women's Hospital Rehabilitation Institute of Chicago Sacred Heart Hospital Northwestern Memorial Hospital Resurrection Health Care West Suburban Medical Center Advocate Bethany Hospital John H Stroger Jr Hospital of Cook County Rush University Medical Center Johnston R Bowman Health Center Jesse Brown VA Medical Center Gottlieb Memorial Hospital University of Illinois Medical Center Loretto Hospital RUSH Oak Park Hospital Hartgrove Hospital Saint Anthony Hospital Resurrection Health Care Westlake Hospital Mount Sinai Hospital Medical Center Kindred Hospital Northlake Mercy Hospital & Medical Center Riveredge Hospital Schwab Rehabilitation Hospital Loyola University Medical Center Edward Hines Jr VA Hospital John J Madden Mental Health Center Northwest Community Hospital Lake Forest Hospital Elmhurst Memorial Hospital MacNeal Hospital Alexian Brothers Medical Center Alexian Rehabilitation Hospital Provident Hospital of Cook County Condell Medical Center University of Chicago Comer Children's Hospital University of Chicago Hospital Bernard Mitchell St Bernard Hospital & Health Care Center North Chicago VA Medical Center Holy Cross Hospital Adventist LaGrange Memorial Hospital Adventist Hinsdale Hospital Jackson Park Hospital & Medical Center La Rabida Children's Hospital Adventist GlenOaks Hospital RML Specialty Hospital South Shore Hospital Vista Medical Center West Alexian Brothers Behavioral Health Hospital Little Company of Mary Hospital & Health Care Centers 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. |
Suggested Reading on Electroretinography by Our Doctors
-
Related Diseases & Conditions
1 articles-
Usher Syndrome
- There are three types of Usher (Usher's) syndrome, the most common condition that affects both vision and hearing. The major symptoms of Usher syndrome include retinitis pigmentosa (night-blindness and a loss of peripheral vision), and hearing loss. Usher syndrome is a genetic condition. There is no cure for Usher syndrome.
-
Usher Syndrome
-
Medications
0 articles -
Procedures & Tests
1 articles -
Pictures, Images & Quizzes
0 articles -
Doctor's & Expert's Views
1 articles -
Health News
0 articles -
Health Features
0 articles
