Electroretinography Center - Louisville, KY
Louisville 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 Louisville * Joe F Arterberry MD  Eye Specialists of Louisville PSC  Eye Specialists of Louisville PSC  George R John MD  Eye Specialists of Louisville PSC  Eye Specialists of Louisville PSC  Eye Specialists of Louisville PSC  Eye Specialists of Louisville PSC  Eye Care Institute  Eye Care Institute  Eye Care Institute  Kentucky Eye Care  Kentucky Eye Care  The Taustine Eye Center  The Taustine Eye Center  Theodore M Wandzilak MD  Norman D Radtke MD  Bennett & Bloom Eye Centers  Bennett & Bloom Eye Centers  Bennett & Bloom Eye Centers  Blue Grass Eye Center  Blue Grass Eye Center  Blue Grass Eye Center  Kentucky Eye Surgery Associates  Kentucky Eye Surgery Associates  Advanced Eye Care  Frank R Burns MD  Conrad Eye Center  Charles O Bruce III MD  Kentucky Eye Care  Richard A Eiferman MD  Kentucky Eye Care  Kentucky Eye Care  Kentucky Eye Care  Kentucky Eye Care  Lee & Rose MDs  Lee & Rose MDs  Stephenson Cataract & Laser Eye Ctr  Catherine Newton MD  Peggy J Fishman MD  John-Kenyon American Eye Institute  John-Kenyon American Eye Institute  John-Kenyon American Eye Institute  John-Kenyon American Eye Institute  John-Kenyon American Eye Institute  John-Kenyon American Eye Institute  John-Kenyon American Eye Institute  Ophthalmology Associates PSC  Doctor's Eye Institute  Ophthalmology Associates PSC  Doctor's Eye Institute  Doctor's Eye Institute  Ophthalmology Associates PSC  Marianne Cowley MD  Knight & Smith PSC  Knight & Smith PSC  Knight & Smith PSC  Knight & Smith PSC  Robert G Kinker MD  Randolph L Offutt MD  Medical Vision Group  Eye Consultants of Kentucky PSC  Eye Consultants of Kentucky PSC  Jack L Hollins MD  Downing-McPeak Vision Centers  Rynerson Vision Care  Linda Katz MD  Cincinnati Eye Institute  Kenneth R Weaver MD  Bluegrass Eyecare Associates PSC  Bluegrass Eyecare Associates PSC  Bluegrass Eyecare Associates PSC  Kentucky Eye Institute PSC  Kentucky Eye Institute PSC  James W Matthews MD  Kentucky Eye Institute PSC  University of Kentucky Eye Clinic  University of Kentucky Eye Clinic  University of Kentucky Eye Clinic  John H Saunders MD  University of Kentucky Eye Clinic  University of Kentucky Eye Clinic  University of Kentucky Eye Clinic  University of Kentucky Eye Clinic  UK Ophthalmology & Visual Sciences  UK Ophthalmology & Visual Sciences  UK Ophthalmology & Visual Sciences  UK Ophthalmology & Visual Sciences  Tri-State Centers for Sight, Inc.  Lexinton Clinic East Ophthalmology  Lexinton Clinic East Ophthalmology  Lexinton Clinic East Ophthalmology  Lexinton Clinic East Ophthalmology  Kentucky Center for Vision  Bluegrass Retina Consultants  Abell Eyes Laser Center  Charles J Breen MD PSC  Tom Maddox MD  Tom Maddox MD  Tri-State Centers for Sight, Inc. Louisville, KentuckyLouisville is the largest city in the U.S. state of Kentucky, and the county seat of Jefferson County. Since 2003, the city's borders have been coterminous with those of the county because of a city-county merger. An important internal shipping port in the 19th century, Louisville is today most well known for the Kentucky Derby, the widely watched first race of the Triple Crown of Thoroughbred Racing. 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 Louisville
Nearby Louisville Hospitals *Frazier Rehab Institute Jewish Hospital Louisville Kindred Hospital Louisville at Jewish Hospital Norton Hospital Kosair Children's Hospital Norton Healthcare Pavilion University of Louisville Hospital Clark Memorial Hospital Kindred Hospital Louisville Norton Audubon Hospital Our Lady of Peace Louisville VA Medical Center Floyd Memorial Hospital & Health Services Sts Mary & Elizabeth Hospital Southern Indiana Rehab Hospital Baptist Hospital East Wellstone Regional Hospital Norton Suburban Hospital Ten Broeck Hospital Dupont Ten Broeck Hospital KMI Jewish Southwest Medical Center Central State Hospital Saint Catherine Regional Hospital Harrison County Hospital Baptist Hospital Northeast Jewish Hospital Shelbyville Flaget Memorial Hospital Washington County Memorial Hospital Scott Memorial Hospital Lincoln Trail Behavioral Health System 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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