Electroretinography Center - Oxnard, CA
Oxnard 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 Oxnard * Sunshine Eye Services  Sanjay Logani MD  Frank Meronk Jr. MD  Spencer Eye Center  Spencer Eye Center  Coastal Eye Specialists  Coastal Eye Specialists  California Retina Consultants  California Retina Consultants  California Retina Consultants  Kaiser Specialty Clinic  Samuel A Bern MD  Steven D Chang MD Inc  Jeffrey K Luttrull MD  Ventura Ophthalmology Medical Group  Miramar Eye Specialists  Miramar Eye Specialists  Miramar Eye Specialists  Miramar Eye Specialists  Miramar Eye Specialists  The Laser Eye Center of Ventura County  California Eye Consultants  California Eye Consultants  Ventura Eye Institute  Franz Michel MD  Lynn Eye Medical Group  Lynn Eye Medical Group  Lynn Eye Medical Group  Lynn Eye Medical Group  Conejo Simi Eye Medical Group  Conejo Simi Eye Medical Group  Conejo Simi Eye Medical Group  Conejo Simi Eye Medical Group  Conejo Simi Eye Medical Group  Retinal Consultants Of Southern California  Darin Eye Center  Darin Eye Center  Bruce B Becker MD  George S Hoffman MD  Khanna Institute of Lasik  West Lake Eye & Skin Associates Inc  Debra G Tennen MD  Harry Loo MD  Davidorf Eye Group  Davidorf Eye Group  Retinal Consultants Of Los Angeles  Retinal Consultants Of Los Angeles  Marshall M Graditor MD  Ophthalmology Associates of the Valley  Ophthalmology Associates of the Valley  Michelle Reyes MD  Ophthalmology Associates of the Valley  Ophthalmology Associates of the Valley  California Retina Consultants  Eye Surgical Medical Group  Sansum Clinic Ophthalmology  Sansum Clinic Ophthalmology  Roger Kohn MD  California Retina Consultants  Sansum Clinic Ophthalmology  Stuart R Winthrop MD  Kenneth J Arenson MD  Patrick D Keating MD  Paveloff Vision Center  Marc A Lowe MD  Sansum Clinic Ophthalmology  Steven D Zelko MD  Wilson C Wu  Sanjay Logani MD  Sanjay Logani MD  Leon G Partamian MD  Gene W Zdenek MD  Drs Calvin & Calvin  Drs Calvin & Calvin  Northridge Ophthalmology Associates  Brian R Gross MD  Chang Shultz & Shultz MDs  Chang Shultz & Shultz MDs  Chang Shultz & Shultz MDs  Eye Institute of Tarzana  Santa Clarita Valley Eye Center  The Valencia Eye Institute  Associated Eye Specialists Medical Group Inc  Mark R Sawusch MD  Colvard Eye Center  David F Kamin MD  Colvard Eye Center  Colvard Eye Center  Hamni Medical Center  Mark A Baskin MD  Valley Retina  Excel Lazer Vision Institute  Sheryl M Handler MD  Ophthalmology Associates of the Valley  Ophthalmology Associates of the Valley  Elander Eye Medical Group  Elander Eye Medical Group  Kathryn M Gardner MD  The Eye Center  Bernard Monderer MD Oxnard, CaliforniaUpcoming 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 Oxnard
Nearby Oxnard Hospitals *St John's Regional Medical Center Ventura County Medical Center Community Memorial Hospital Aurora Vista Del Mar Hospital St John's Pleasant Valley Hospital Los Robles Hospital & Medical Center Ojai Valley Community Hospital Simi Valley Hospital Motion Picture & Television Hospital West Hills Hospital & Medical Center Kaiser Permanente Woodland Hills Medical Center Cottage Rehabilitation Institute 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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