Electroretinography Center - Nashville, TN
Nashville 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 Nashville * Vanderbilt Eye Institute  Vanderbilt Eye Institute  Vanderbilt Eye Institute  Vanderbilt Eye Institute  Vanderbilt Eye Institute  Vanderbilt Eye Institute  Vanderbilt Eye Institute  Drs Burkhalter & Henderson  Drs Burkhalter & Henderson  Ming X Wang MD  Inez B Bounds MD  Karla J Johns MD  Carolyn M Parrish MD  Pilkinton Eye Center  Joe M Chisolm MD  Vanderbilt Eye Institute Williamson County  Stephen E Grinde MD  Ronald E McFarland MD & Everton L Arrindell MD  Stewart Shofner MD  John B Bond III MD  Ophthalmology Associates  Ophthalmology Associates  Ophthalmology Associates  Heritage Medical Associates  Tennessee Retina  Brian S Biesman MD  Tennessee Retina  Cornea Consultants of Nashville  Cornea Consultants of Nashville  Tennessee Retina  Tennessee Retina Consultants  Cornea Consultants of Nashville  Tennessee Retina  Tennessee Retina Consultants  Arrowsmith Eye Institute  Cumberland Eye Clinic  Centennial Heart at Skyline  Centennial Heart at Skyline  Rynerson Vision Care  Cumberland Eye Clinic  Loden Vision Centers  Drs Cheij Cheij & Skelo  Drs Cheij Cheij & Skelo  Guardian Eye Associates PLC  Guardian Eye Associates PLC  Nashville Vision Associates  Howard H Rosenblum MD  Nashville Vision Associates  Deborah D Sherman MD  Drs Cheij Cheij & Skelo  Nashville Vision Associates  Guardian Eye Associates PLC  L Edwin Rice Jr. MD  L Edwin Rice Jr. MD  Nashville Eye Associates  Nashville Eye Associates  Loden Vision Centers  Summit Eye Associates PC  Summit Eye Associates PC  Yeshawant B Paranjape MD  Vanderbilt Eye Institute Williamson County  David L Newsom MD  Vanderbilt Eye Institute Williamson County  Green Eye Center  Green Eye Center  The Eye Center  The Eye Center  The Eye Center  Murfreesboro Medical Clinic Ophthamology  Murfreesboro Medical Clinic Ophthamology  McCabe Vision Center  Stones River Eye Center  Stones River Eye Center  Harold T Akin MD  McClure Eye Center  Premier Medical Group Ob/Gyn  Charles D Atnip MD  Gordon Hamilton & King MDs  Gordon Hamilton & King MDs  Clarksville Ophthalmology PC  Clarksville Ophthalmology PC  Clarksville Ophthalmology PC  Eye Care Center  Eye Care Center  Mahan & Ridley Eye Associates  Mahan & Ridley Eye Associates  Florence Ophthalmology PC  McMinnville Eyecare  James Grisolano Jr. MD  Upper Cumberland Regional Eye Center  Middle Tennessee Eye Associates  Cookeville Eye Specialist Nashville, TennesseeNashville is the capital of the U.S. state of Tennessee and the county seat of Davidson County. It is the second most populous city in the state after Memphis. It is located on the Cumberland River in Davidson County, in the north-central part of the state. The city is a major hub for the health care, music, publishing, banking and transportation industries. Upcoming Local Events2012-06-02
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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 Nashville
Nearby Nashville Hospitals *Metropolitan Nashville General Hospital Baptist Hospital Nashville Rehabilitation Hospital Centennial Medical Center Parthenon Pavilion Vanderbilt University Medical Center Monroe Carell Jr Children's Hospital at Vanderbilt Nashville VA Medical Center Psychiatric Hospital At Vanderbilt Vanderbilt Stallworth Rehabilitation Hospital Bordeaux Long Term Care Kindred Hospital Nashville Saint Thomas Hospital Skyline Medical Center Southern Hills Medical Center Middle Tennessee Mental Health Institute Skyline Madison Campus Summit Medical Center Hendersonville Medical Center Williamson Medical Center Centennial Medical Center Ashland City StoneCrest Medical Center Sumner Regional Medical Center NorthCrest Medical Center University Medical Center McFarland Specialty Hospital Alvin C York Veterans Affairs Medical Center Middle Tennessee Medical 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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