Electroretinography Center - New Braunfels, TX
New Braunfels 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 New Braunfels * David Way MD  W Darrell Willerson Jr. MD  New Braunfels Vision Center  Eye Associates  Eye Associates  Fleming Eye Care  Fleming Eye Care  Central Texas Eye Center  Central Texas Eye Center  Peter J Speicher MD  Wendall C Bauman Jr. MD  Alamo City Eye  Alamo City Eye  Alamo City Eye  Alamo City Eye  Medical Center Ophthalmology Associates  Medical Center Ophthalmology Associates  Medical Center Ophthalmology Associates  Medical Center Ophthalmology Associates  Medical Center Ophthalmology Associates  Samuel J Pierce MD  Ophthalmology Associates San Antonio  Ophthalmology Associates San Antonio  Ophthalmology Associates San Antonio  Donald Adams MD  Donald K Sanford MD  Children's Eye Center  Martha C Wilson MD  North Central Ophthalmology  Nader G Iskander MD  Lynnell C Lowry MD  Eye Clinics of South Texas PA  Harrison Bowes MD  Miriam J Friedman MD  Stone Oak Ophthamology  Stone Oak Ophthamology  David G Shulman MD PA  David G Shulman MD PA  David I Tasker MD  Joe B Frey MD  Mary H Arno MD  George M Lowry MD  Patrick S O'Connor MD  Patrick S O'Connor MD  San Antonio Eye Center  San Antonio Eye Center  San Antonio Eye Center  San Antonio Eye Center  Braverman Terry & Oei Eye Associates  W Darrell Willerson Jr. MD  Braverman Terry & Oei Eye Associates  Center For Corrective Eye Surgery  Braverman Terry & Oei Eye Associates  Braverman Terry & Oei Eye Associates  Braverman Terry & Oei Eye Associates  John Y Harper Jr. MD  Robert N Jones MD  James L Mims III  Alamo Ophthalmology Center  Alamo Ophthalmology Center  Thomas Coronado MD  Ophthalmology Associates San Antonio  Kozlovsky Delay Winter Eye Consultants LLC  Ophthalmology Associates San Antonio  Ophthalmology Associates San Antonio  Ophthalmology Associates San Antonio  Kozlovsky Delay Winter Eye Consultants LLC  Dr Richard A Keh PA  Retina Associates of South Texas PA  Retina Associates of South Texas PA  Roberto San Martin MD  James W Speights MD PA  Texan Eye Care  Eye Associates  Eye Associates  Peter H Broberg MD & Associates PA  John F Saunders MD  Peter H Broberg MD & Associates PA  UT Medicine Eye Consultants  UT Medicine San Antonio  UT Medicine Eye Consultants  UT Medicine Eye Consultants  UT Medicine Eye Consultants  Donald A Hollsten MD  UT Medicine Eye Consultants  UT Medicine Eye Consultants  UT Medicine Eye Consultants  UT Medicine Eye Consultants  UT Medicine Eye Consultants  UT Medicine San Antonio  UT Medicine Eye Consultants  Pediatric Opthalmalogy  Focal Point Vision  Focal Point Vision  Focal Point Vision  Focal Point Vision  Joel Z Taylor MD  David K Scales MD  Jane Lindell Hughes MD FAACS Ophthalmology & Ophthalmic Surgery  Retinal Consultants of San Antonio New Braunfels, TexasUpcoming 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 New Braunfels
Nearby New Braunfels Hospitals *Christus Santa Rosa New Braunfels Guadalupe Regional Medical Center Central Texas Medical Center Northeast Methodist Hospital Laurel Ridge Treatment Center COMPASS Hospital at San Antonio Mission Vista Behavioral Health Center Spine Hospital of South Texas Northeast Baptist Hospital North Central Baptist Hospital Seton Edgar B Davis Memorial Hospital Nix Specialty Health Center Warm Springs Specialty Hospital Luling Southeast Baptist Hospital Metropolitan Methodist Hospital Kindred Hospital San Antonio Baptist Medical Center Select Specialty Hospital San Antonio TexSAn Heart Hospital Nix Medical Center CHRISTUS Santa Rosa City Centre & Children's Hospital Southwest Mental Health Center HEALTHSOUTH Rehabilitation Institute of San Antonio Methodist Children's Hospital of South Texas Methodist Hospital St Luke's Baptist Hospital Methodist Specialty & Transplant Hospital University Health System San Antonio Texas Specialty Hospital Warm Springs San Antonio Rehabilitation Hospital LifeCare Hospitals of San Antonio San Antonio State Hospital South Texas VA Healthcare System Methodist Ambulatory Surgery Hospital Northwest CHRISTUS Santa Rosa Medical Center CHRISTUS Santa Rosa Rehabilitation Hospital Texas Center for Infectious Disease Seton Southwest Healthcare Center Promise Hospital of San Antonio Southwest General 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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