Electroretinography Center - Metairie, LA
Metairie 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 Metairie * Dimitri Eye Center  Brandon M Wool MD  Haik & Terrell LLC  Haik & Terrell LLC  Ochsner Clinic Ophthalmology  Ochsner Clinic Ophthalmology  Ochsner Clinic Ophthalmology  Ochsner Clinic Ophthalmology  Ochsner Clinic Ophthalmology  Ochsner Clinic Ophthalmology  Caplan Eye Clinic  Caplan Eye Clinic  George M Haik Eye Clinic  Robert A Schimek MD  Eye Surgery Center of LA  Charles Rossner MD  Eyecare Associates  Scott D LaNoux & Associates LLC  Scott D LaNoux & Associates LLC  Eyecare Associates  Scott D LaNoux & Associates LLC  Eyecare Associates  Eyecare Associates  New Orleans Eye Specialists  New Orleans Eye Specialists  New Orleans Eye Specialists  John B Saer MD PhD  LSU Eye Center  LSU Eye Center  LSU Eye Center  LSU Eye Center  LSU Eye Center  LSU Eye Center  Gulf South Eye Associates  Gulf South Eye Associates  William Rachal MD  Robert Ross MD FACS  Gulf South Eye Associates  Tulane Ophthalmology Dept  Tulane Ophthalmology Dept  Greater New Orleans Eye Physicians  Greater New Orleans Eye Physicians  Childrens Hospital of New Orleans  Childrens Hospital of New Orleans  Childrens Hospital of New Orleans  Lance Turkish MD & Associates  EyeCare 20/20  Jobie F Crear MD & Associates  Eye Associates of West Jefferson  Eye Associates of West Jefferson  Eye Associates of West Jefferson  Eye Associates of West Jefferson  Westside Eye Clinic  Westside Eye Clinic  Can N Tran MD  Botero Eye Clinic  Botero Eye Clinic  Medical Surgical Eye Care Center  Daniel A Long MD  Gretna Eye Clinic  The Eye Center  Aslett -Kurica Eye Center  Aslett -Kurica Eye Center  Aslett -Kurica Eye Center  Aslett -Kurica Eye Center  Northshore Eye Associates LLC  Obyrne Eye Clinic  Rudolph M Franklin MD & Associates  Surgical Eye Associates  Surgical Eye Associates  Surgical Eye Associates  Kyle Acosta MD  The Medical & Surgical Eye Center  The Medical & Surgical Eye Center  Satyarthi Gupta & Sushma Gupta MDs  Ralph R Nix MD  Northlake Eye Center  Northlake Eye Center  Ellen C Schneider MD  Eye Physicians & Surgeons  Eye Medical Center  Eye Medical Center  Van M Ardoin MD  J Bruce Steigner MD  Advanced Eye Institute  Advanced Eye Institute  Advanced Eye Institute  SEECA Medical  Kellum Eye Center  The Eye Institute  Eye Care Center  Eye Care Center  Eye Care Center  Eye Care Center  Eye Care Center  Gregory Hoffpauir MD  Russell J Saloom MD  Children's Eye Center  Ochsner Clinic Baton Rouge Division of Ophthalmology  Ochsner Clinic Baton Rouge Division of Ophthalmology Metairie, LouisianaUpcoming Local Events2012-06-16
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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 Metairie
Nearby Metairie Hospitals *Tulane-Lakeside Hospital Ochsner Foundation Hospital East Jefferson General Hospital LSU Hospital St Teresa Specialty Hospital Ochsner Baptist Medical Center Southeast Louisiana Veterans Healthcare System De Paul Tulane Behavioral Health Center Tulane University Hospital & Clinic River Oaks Hospital Community Care Hospital St Charles Surgical Hospital Children's Hospital Kindred Healthcare New Orleans Touro Infirmary New Orleans Adolescent Hospital St Joseph of Harahan Hospital West Jefferson Medical Center Louisiana Specialty Hospital Ochsner Medical Center Westbank Ochsner Medical Center Kenner United Medical Healthwest Rehabilitation Hospital Specialty Hospital of New Orleans Luling Rehabilitation Hospital St Charles Parish Hospital LaPlace Rehabilitation Hospital River Parishes Hospital Southeast Louisiana Hospital Louisiana Medical Center & Heart Hospital Lakeview Regional Medical Center Doctors Hospital of Slidell Slidell Memorial Hospital & Medical Center Gulf States LTAC Covington NorthShore Regional Medical Center Ochsner St Anne General Hospital Regency Hospital of Covington Greenbrier Hospital St Anne Rehabilitation Hospital St Tammany Parish Hospital St James Parish Hospital 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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