Electroretinography Center - Milpitas, CA
Milpitas 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 Milpitas * Timothy T Wang MD  Ngoc Nguyen MD  San Jose Medical Group  San Jose Medical Group  Retinal Diagnostic Center  Retinal Diagnostic Center  Raghunand Sastry MD  Retinal Diagnostic Center  N CA Retina Vitreous Associates Inc  Claudio S Contreras MD Inc  N CA Retina Vitreous Associates Inc  N CA Retina Vitreous Associates Inc  San Jose Eye Institute  San Jose Eye Institute  Eye Medical Clinic  Eye Medical Clinic  Eye Medical Clinic  Peter J Rutti MD  Carey Vision Medical Group  Carey Vision Medical Group  Khoa Nguyen MD  Optima Ophthalmic Medical Associates Inc  Randal T Pham MD  Joseph A Eliason MD  Gregory H Phan MD  Winchester Optometry  Palo Alto Medical Foundation Fremont Center  Laser Eye Center of Silicon Valley  Rona Z Silkiss MD  Robert C Black MD  Mission Valley Medical Eye Center  Kenneth C Low MD APC  East Bay Retina Consultants  East Bay Retina Consultants  East Bay Retina Consultants  Kenneth C Low MD APC  Kenneth C Low MD APC  Maskeen Sabharwal MD  James J Song MD  Fang Tan MD  South Bay Retina Inc  Singer Cohn & Catmzaro MDs  Singer Cohn & Catmzaro MDs  Spectrum Eye Physicians  Spectrum Eye Physicians  Spectrum Eye Physicians  Silicon Valley Physicians  Camino Medical Group  Camino Medical Group  Camino Medical Group  Camino Medical Group  Camino Medical Group  Krikor Barsoumian MD Inc  N CA Retina Vitreous Associates Inc  John W Duggan MD  Donald Y Lesser MD  Edward J Saub MD  David Silverstein MD  N CA Retina Vitreous Associates Inc  N CA Retina Vitreous Associates Inc  Tony G Andrews MD & Christine E Langell MD  Tony G Andrews MD & Christine E Langell MD  Medical & Surgical Vision Care  LaserVue Eye Center  Drs Beers Shakinian & Volpicelli  Drs Beers Shakinian & Volpicelli  Drs Beers Shakinian & Volpicelli  Spectrum Eye Center  Altos Eye Physicians  Cockerham Eye Consultants  Altos Eye Physicians  Altos Eye Physicians  Arthur A Basham MD  Spectrum Eye Physicians  Spectrum Eye Physicians  Beth Green MD  Auker Eye Institute  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  Kaiser Union City Eye Services  Kaiser Union City Eye Services  Palo Alto Medical Clinic Ophthalmology  Palo Alto Medical Clinic Ophthalmology  Palo Alto Medical Clinic Ophthalmology  Palo Alto Medical Clinic Ophthalmology  Palo Alto Medical Clinic Ophthalmology  Palo Alto Medical Clinic Ophthalmology  Palo Alto Medical Clinic Ophthalmology  Stanford Eye Clinic  Stanford Eye Clinic  Stanford Eye Clinic  Stanford Eye Clinic  Stanford Eye Clinic  Mid Peninsula Ophthalmology  Mid Peninsula Ophthalmology Milpitas, 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 Milpitas
Nearby Milpitas Hospitals *Regional Medical Center of San Jose O'Connor Hospital Santa Clara Valley Medical Center Kaiser Permanente Santa Clara Medical Center Fremont Hospital Washington Hospital El Camino Hospital El Camino Hospital of Los Gatos Good Samaritan Hospital San Jose Good Samaritan Hospital Mission Oaks VA Palo Alto Health Care System Kaiser Permanente San Jose Medical Center Menlo Park Surgical Hospital Lucile Packard Children's Hospital Stanford Hospital & Clinics Livermore Division of the VA Palo Alto Healthcare System Kaiser Permanente Hayward Medical Center St Rose Hospital Valley Memorial Hospital Kaiser Permanente Redwood City Medical Center ValleyCare Health System Pleasanton Sequoia Hospital Eden Medical Center Alameda County Medical Center Fairmont Campus John George Psychiatric Pavilion San Mateo Medical Center Kindred Hospital San Francisco Bay Area San Leandro Hospital San Ramon Regional Medical Center Mills Hospital Mills-Peninsula Health Services Alameda Hospital Dominican Hospital Sutter Maternity & Surgery Center Alameda County Medical Center Highland Campus Saint Louise Regional Hospital Kaiser Permanente Walnut Creek Medical Center Sutter Tracy Community Hospital Alta Bates Summit Medical Center Summit Campus Kaiser Permanente Medical Center at Oakland Kaiser Permanente South San Francisco Medical Center Seton Medical Center Coastside John Muir Medical Center Walnut Creek Campus Children's Hospital & Research Center Oakland 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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