Electroretinography Center - Livermore, CA
Livermore 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 Livermore * Auker Eye Institute  East Bay Retina Consultants  Day & Good MDs  Mission Valley Medical Eye Center  East Bay Retina Consultants  East Bay Retina Consultants  East Bay Eye Center  East Bay Eye Center  Children's Eye Care of Northern California  Rona Z Silkiss MD  Maskeen Sabharwal MD  James J Song MD  Fang Tan MD  Palo Alto Medical Foundation Fremont Center  Kenneth C Low MD APC  Kenneth C Low MD APC  Kenneth C Low MD APC  Robert C Black MD  Singer Cohn & Catmzaro MDs  Singer Cohn & Catmzaro MDs  California Eye Clinic  California Eye Clinic  California Eye Clinic  Children's Hospital Oakland  Danville San Ramon Eye Medical Corp  Danville San Ramon Eye Medical Corp  Danville San Ramon Eye Medical Corp  Suraj Cherry MD  Delta Eye Medical Group  Castro Valley Eye Center  Castro Valley Eye Center  Castro Valley Eye Center  Optima Ophthalmic Medical Associates Inc  Optima Ophthalmic Medical Associates Inc  Optima Ophthalmic Medical Associates Inc  Optima Ophthalmic Medical Associates Inc  Ngoc Nguyen MD  San Jose Medical Group  San Jose Medical Group  Timothy T Wang MD  Retinal Diagnostic Center  Retinal Diagnostic Center  Raghunand Sastry MD  Retinal Diagnostic Center  Eye Specialties Medical Group  Bay Area Retina Associates  Eye Specialties Medical Group  Bay Area Retina Associates  Bay Area Retina Associates  Jordan M Usunov MD  Kaiser Union City Eye Services  Kaiser Union City Eye Services  Kaiser Union City Eye Services  Kaiser Union City Eye Services  Kaiser Union City Eye Services  Kaiser Union City Eye Services  Kaiser Union City Eye Services  Tracy Eye Care Medical Clinic  Kaiser Union City Eye Services  Kaiser Union City Eye Services  Lerner Eye Center  Lerner Eye Center  Claudio S Contreras MD Inc  San Jose Eye Institute  San Jose Eye Institute  N CA Retina Vitreous Associates Inc  N CA Retina Vitreous Associates Inc  N CA Retina Vitreous Associates Inc  Chou Harrison & Paul MD  Michelle W Liu MD  Chou Harrison & Paul MD  Walnut Creek Optical  Walnut Creek Optical  Kaiser Permanente Park Shadelands Ophthalmology  LaserVue Eye Center  Kaiser Permanente Park Shadelands Ophthalmology  Kaiser Permanente Park Shadelands Ophthalmology  Diablo Valley Eye Center  Diablo Valley Eye Center  Kaiser Permanente Park Shadelands Ophthalmology  Diablo Valley Eye Center  Kaiser Permanente Park Shadelands Ophthalmology  Kaiser Permanente Park Shadelands Ophthalmology  Bay Area Retina Associates  Diablo Valley Eye Center  Kaiser Permanente Park Shadelands Ophthalmology  Kaiser Permanente Park Shadelands Ophthalmology  Bay Area Retina Associates  Kaiser Permanente Park Shadelands Ophthalmology  Batra Vision Medical Group  Batra Vision Medical Group  Batra Vision Medical Group  Pacific Eye Care Center  Eye Medical Clinic  Eye Medical Clinic  Eye Medical Clinic  Peter J Rutti MD  Carey Vision Medical Group  Carey Vision Medical Group  Khoa Nguyen MD Livermore, CaliforniaUpcoming Local Events2012-06-16
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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 Livermore
Nearby Livermore Hospitals *Valley Memorial Hospital Livermore Division of the VA Palo Alto Healthcare System ValleyCare Health System Pleasanton San Ramon Regional Medical Center Washington Hospital Fremont Hospital Eden Medical Center Sutter Tracy Community Hospital St Rose Hospital Kaiser Permanente Hayward Medical Center Alameda County Medical Center Fairmont Campus John George Psychiatric Pavilion Kindred Hospital San Francisco Bay Area San Leandro Hospital Sutter Delta Medical Center Regional Medical Center of San Jose Kaiser Permanente Walnut Creek Medical Center John Muir Medical Center Walnut Creek Campus O'Connor Hospital John Muir Medical Center Concord Campus John Muir Behavioral Health Center Menlo Park Surgical Hospital Santa Clara Valley Medical Center Kaiser Permanente Santa Clara Medical Center Alameda County Medical Center Highland Campus El Camino Hospital Alameda Hospital Lucile Packard Children's Hospital VA Palo Alto Health Care System Stanford Hospital & Clinics Kaiser Permanente Redwood City Medical Center Kaiser Permanente Hospital Manteca Kaiser Permanente Medical Center at Oakland VA Northern CA Healthcare System at Martinez Alta Bates Summit Medical Center Summit Campus San Joaquin General Hospital Alta Bates Summit Medical Center Alta Bates Campus Children's Hospital & Research Center Oakland Kaiser Permanente San Jose Medical Center Sequoia Hospital Contra Costa Regional Medical Center Alta Bates Summit Medical Center Herrick Campus El Camino Hospital of Los Gatos Good Samaritan Hospital San Jose San Mateo Medical Center Good Samaritan Hospital Mission Oaks Dameron Hospital Doctors Hospital of Manteca Mills Hospital St Joseph's Medical Center St Joseph's Behavioral Health Center Mills-Peninsula Health Services 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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