Electroretinography Center - Joliet, IL
Joliet 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 Joliet * Eligijus P Lelis MD  Mark J Fritz MD  Vision Correction Center  Associated Ophthalmologists  Associated Ophthalmologists  Illinois Retina Associates SC  Illinois Retina Associates SC  Advanced Eye Care  Naperville Eye Associates  Naperville Eye Associates  Retina Macula Specialists PC  Dupage Ophthalmology  Dupage Ophthalmology  University Retina & Macula Associates PC  Pronger Smith Medical Care  Pronger Smith Medical Care  Krates Eye Center  Midwest Physician Centers of Orland Park  Naperville Eye Associates  Robert Allar MD  The Eye Specialists Center  The Eye Specialists Center  Southwest Eye Center SC  Aurora Eye Clinic  Amjad Z Ahmad MD  Progressive Eye Care  Progressive Eye Care  Progressive Eye Care  Dennis M Wolf MD  Dupage Eye Center  Dupage Eye Center  Illinois Oculoplastic Associates  Oak Park Eye Center  Larson Eye Center Ltd  DuPage Eye Associates  DuPage Eye Associates  Larson Eye Center Ltd  Larson Eye Center Ltd  James M Noth MD  Allen M Pielet MD  The Eye Specialists Center  The Eye Specialists Center  Matthew E Schmidt MD & Paul J Schmidt MD  Matthew E Schmidt MD & Paul J Schmidt MD  Krates Eye Center  C Ronald Lindberg MD SC  Krates Eye Center  Dupage Ophthalmology  Gary Rubin MD  Arora & Nagpal Assoc  Arora & Nagpal Assoc  Glen Ellyn Opthalmology  Glen Ellyn Opthalmology  Benjamin Eye Care Center  Joel U Mann MD  Audrey Wayne MD  Retina Associates  Robert E Gorsich MD  Anil Gulati MD  Retina Associates  Retina Associates  Retina Associates  Smith-Perry Eye Center  Raymond Moeller MD  Herman D Sloane MD  Alan Y Chow MD  Dreyer Mercy Campus Ophthalmology  Dreyer Mercy Campus Ophthalmology  Aurora Eye Clinic  Aurora Eye Clinic  Aurora Eye Clinic  Aurora Eye Clinic  Wheaton Eye Clinic  Wheaton Eye Clinic  Wheaton Eye Clinic  Wheaton Eye Clinic  Wheaton Eye Clinic  Wheaton Eye Clinic  Wheaton Eye Clinic  Wheaton Eye Clinic  Wheaton Eye Clinic  Wheaton Eye Clinic  Wheaton Eye Clinic  Wheaton Eye Clinic  Edward Mann MD  Wheaton Eye Clinic  Wheaton Eye Clinic  Wheaton Eye Clinic  Wheaton Eye Clinic  Wheaton Eye Clinic  Wheaton Eye Clinic  Linas A Sidrys MD  Wheaton Eye Clinic  Wheaton Eye Clinic  Wheaton Eye Clinic  Wheaton Eye Clinic  Wheaton Eye Clinic  Wheaton Eye Clinic  Ralph N Dado Jr. MD  Mark Ros MD Joliet, 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 Usher syndrome?Usher syndrome is the most common condition that affects both hearing and vision. A syndrome is a disease or disorder that has more than one feature or symptom. The major symptoms of Usher syndrome are hearing loss and an eye disorder called retinitis pigmentosa, or RP. RP causes night-blindness and a loss of peripheral vision (side vision) through the progressive degeneration of the retina. The retina is a light-sensitive tissue at the back of the eye and is crucial for vision. As RP progresses, the field of vision narrows - a condition known as "tunnel vision" - until only central vision (the ability to see straight ahead) remains. Many people with Usher syndrome also have severe balance problems. There are three clinical types of Usher syndrome:
In the United States, types 1 and 2 are the most common types. Together, they... Other Related Electroretinography ArticlesEmergency Contact for Joliet
Nearby Joliet Hospitals *Silver Cross Hospital Provena Saint Joseph Medical Center Adventist Bolingbrook Hospital Tinley Park Mental Health Center Linden Oaks Hospital at Edward Edward Hospital Rush-Copley Medical Center Palos Community Hospital Oak Forest Hospital of Cook County St James Hospital & Health Center Olympia Fields Advocate Christ Medical Center & Hope Children's Hospital Advocate South Suburban Hospital Advocate Good Samaritan Hospital Morris Hospital RML Specialty Hospital Adventist Hinsdale Hospital Adventist LaGrange Memorial Hospital Provena Mercy Medical Center Ingalls Memorial Hospital MetroSouth Medical Center St James Hospital & Health Centers Chicago Heights Central DuPage Hospital Marianjoy Rehabilitation Hospital Little Company of Mary Hospital & Health Care Centers MacNeal Hospital Holy Cross Hospital Roseland Community Hospital Edward Hines Jr VA Hospital John J Madden Mental Health Center Loyola University Medical Center Adventist GlenOaks Hospital Riveredge Hospital Elmhurst Memorial Hospital Resurrection Health Care Westlake Hospital Delnor-Community Hospital Kindred Hospital Northlake RUSH Oak Park Hospital Hartgrove Hospital Loretto Hospital Saint Margaret Mercy Healthcare Centers South Campus St Bernard Hospital & Health Care Center Valley West Community Hospital Gottlieb Memorial Hospital Riverside Medical Center Schwab Rehabilitation Hospital Franciscan Physicians Hospital Saint Margaret Mercy Healthcare Centers North Campus Select Specialty Hospital Northwest Indiana The Community Hospital Provena St Mary's Hospital Resurrection Health Care West Suburban Medical Center Advocate Trinity Hospital Saint Anthony Hospital Jackson Park Hospital & Medical Center University of Chicago Hospital Bernard Mitchell South Shore Hospital University of Chicago Comer Children's Hospital Advocate Bethany Hospital Provident Hospital of Cook County Mount Sinai Hospital Medical Center Shriners Hospital for Children Chicago La Rabida Children's Hospital Sacred Heart Hospital Jesse Brown VA Medical Center University of Illinois Medical Center John H Stroger Jr Hospital of Cook County Johnston R Bowman Health Center Rush University Medical Center Mercy Hospital & Medical Center Norwegian-American Hospital Alexian Brothers Medical Center Alexian Rehabilitation Hospital Chicago-Read Mental Health Center Resurrection Health Care Our Lady of Resurrection Medical Center Resurrection Health Care Saint Mary of Nazareth Hospital Center 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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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.
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Usher Syndrome
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