Electroretinography Center - Smyrna, TN
Smyrna 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 Smyrna * Murfreesboro Medical Clinic Ophthamology  Murfreesboro Medical Clinic Ophthamology  McCabe Vision Center  Ophthalmology Associates  Stones River Eye Center  Stones River Eye Center  Harold T Akin MD  Nashville Eye Associates  Nashville Eye Associates  Summit Eye Associates PC  Summit Eye Associates PC  Summit Eye Associates PC  Yeshawant B Paranjape MD  Nashville Vision Associates  Nashville Vision Associates  Nashville Vision Associates  The Eye Center  The Eye Center  The Eye Center  Vanderbilt Eye Institute Williamson County  Vanderbilt Eye Institute Williamson County  Vanderbilt Eye Institute Williamson County  Vanderbilt Eye Institute  Vanderbilt Eye Institute  Vanderbilt Eye Institute  Vanderbilt Eye Institute  Vanderbilt Eye Institute  Vanderbilt Eye Institute  Vanderbilt Eye Institute  Ming X Wang MD  Drs Burkhalter & Henderson  Drs Burkhalter & Henderson  Joe M Chisolm MD  Stephen E Grinde MD  Ronald E McFarland MD & Everton L Arrindell MD  Stewart Shofner MD  Pilkinton Eye Center  Inez B Bounds MD  Karla J Johns MD  Heritage Medical Associates  Carolyn M Parrish MD  Arrowsmith Eye Institute  John B Bond III MD  Cornea Consultants of Nashville  Ophthalmology Associates  Cornea Consultants of Nashville  Ophthalmology Associates  Cornea Consultants of Nashville  Tennessee Retina  Brian S Biesman MD  Tennessee Retina  Tennessee Retina  Tennessee Retina Consultants  Tennessee Retina  Tennessee Retina Consultants  David L Newsom MD  L Edwin Rice Jr. MD  L Edwin Rice Jr. MD  Cumberland Eye Clinic  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  Howard H Rosenblum MD  Deborah D Sherman MD  Drs Cheij Cheij & Skelo  Guardian Eye Associates PLC  Loden Vision Centers  Green Eye Center  Green Eye Center  Eye Care Center  Eye Care Center  Charles D Atnip MD  Gordon Hamilton & King MDs  Gordon Hamilton & King MDs  Mahan & Ridley Eye Associates  Mahan & Ridley Eye Associates  McMinnville Eyecare  McClure Eye Center  Premier Medical Group Ob/Gyn  Clarksville Ophthalmology PC  Clarksville Ophthalmology PC  Clarksville Ophthalmology PC  James Grisolano Jr. MD  Upper Cumberland Regional Eye Center  Middle Tennessee Eye Associates  Cookeville Eye Specialist  Florence Ophthalmology PC Smyrna, TennesseeUpcoming Local Events2012-05-26
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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 Smyrna
Nearby Smyrna Hospitals *StoneCrest Medical Center Alvin C York Veterans Affairs Medical Center Middle Tennessee Medical Center Southern Hills Medical Center Summit Medical Center Middle Tennessee Mental Health Institute Williamson Medical Center Nashville Rehabilitation Hospital University Medical Center Vanderbilt Stallworth Rehabilitation Hospital Psychiatric Hospital At Vanderbilt Monroe Carell Jr Children's Hospital at Vanderbilt Vanderbilt University Medical Center Nashville VA Medical Center Baptist Hospital McFarland Specialty Hospital Centennial Medical Center Parthenon Pavilion Metropolitan Nashville General Hospital Saint Thomas Hospital Skyline Madison Campus Skyline Medical Center Bordeaux Long Term Care Kindred Hospital Nashville Hendersonville Medical Center Stones River Hospital Heritage Medical Center Sumner Regional Medical Center Trousdale 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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