Electroretinography Center - Hayward, CA
Hayward 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 Hayward * 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  Optima Ophthalmic Medical Associates Inc  Optima Ophthalmic Medical Associates Inc  Optima Ophthalmic Medical Associates Inc  Optima Ophthalmic Medical Associates Inc  Batra Vision Medical Group  Batra Vision Medical Group  Batra Vision Medical Group  Castro Valley Eye Center  Eye Specialties Medical Group  Bay Area Retina Associates  Eye Specialties Medical Group  Castro Valley Eye Center  Bay Area Retina Associates  Castro Valley Eye Center  Bay Area Retina Associates  Turner Eye Institute Medical Group  Singer Cohn & Catmzaro MDs  Singer Cohn & Catmzaro MDs  Kenneth C Low MD APC  Kenneth C Low MD APC  Kenneth C Low MD APC  James J Song MD  Fang Tan MD  East Bay Retina Consultants  East Bay Retina Consultants  East Bay Retina Consultants  Maskeen Sabharwal MD  Robert C Black MD  Rona Z Silkiss MD  Palo Alto Medical Foundation Fremont Center  Mission Valley Medical Eye Center  Philip L Gardner MD Inc  Philip L Gardner MD Inc  Philip L Gardner MD Inc  Tearse Eye Center  Tearse Eye Center  Stephen E Post MD & Sophia Chen MD  Stephen E Post MD & Sophia Chen MD  Robert L M Hetland & Thomas Berard MDs  Robert L M Hetland & Thomas Berard MDs  L Scott Feiler MD  Ninh Tran & Alan Susal MDs  Ninh Tran & Alan Susal MDs  Sonja S Declercq MD  Menlo Medical Clinic  California Vitreoretinal Center  California Vitreoretinal Center  California Vitreoretinal Center  California Vitreoretinal Center  California Vitreoretinal Center  Eye Clinic  Eye Clinic  Richard B Braunstein MD Inc  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  Mid Peninsula Ophthalmology  Mid Peninsula Ophthalmology  Day & Good MDs  East Bay Eye Center  East Bay Eye Center  Children's Eye Care of Northern California  Danville San Ramon Eye Medical Corp  Danville San Ramon Eye Medical Corp  Danville San Ramon Eye Medical Corp  Peninsula Eye Physicians Group  Peninsula Eye Physicians Group  Peninsula Eye Physicians Group  Peninsula Eye Physicians Group  Peninsula Eye Physicians Group  San Francisco Eye Institute  N CA Retina Vitreous Associates Inc  N CA Retina Vitreous Associates Inc  N CA Retina Vitreous Associates Inc  N CA Retina Vitreous Associates Inc  N CA Retina Vitreous Associates Inc  N CA Retina Vitreous Associates Inc  Glaucoma Specialists  Newton Medical Group  Eye Physicians of the East Bay Hayward, 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 Hayward
Nearby Hayward Hospitals *Kaiser Permanente Hayward Medical Center St Rose Hospital Eden Medical Center Alameda County Medical Center Fairmont Campus John George Psychiatric Pavilion San Leandro Hospital Kindred Hospital San Francisco Bay Area Washington Hospital Fremont Hospital Alameda Hospital Kaiser Permanente Redwood City Medical Center Menlo Park Surgical Hospital San Mateo Medical Center Mills Hospital Alameda County Medical Center Highland Campus San Ramon Regional Medical Center Sequoia Hospital ValleyCare Health System Pleasanton Lucile Packard Children's Hospital Stanford Hospital & Clinics Mills-Peninsula Health Services Alta Bates Summit Medical Center Summit Campus Kaiser Permanente Medical Center at Oakland Children's Hospital & Research Center Oakland VA Palo Alto Health Care System Alta Bates Summit Medical Center Alta Bates Campus Kaiser Permanente South San Francisco Medical Center Alta Bates Summit Medical Center Herrick Campus San Francisco General Hospital Kaiser Permanente Walnut Creek Medical Center St Luke's Hospital El Camino Hospital Valley Memorial Hospital Chinese Hospital Saint Francis Memorial Hospital California Pacific Medical Center Davies Campus Seton Medical Center John Muir Medical Center Walnut Creek Campus Livermore Division of the VA Palo Alto Healthcare System Laguna Honda Hospital & Rehabilitation Center California Pacific Medical Center Pacific Campus UCSF Medical Center at Mount Zion Kaiser Permanente San Francisco Medical Center UCSF Medical Center at Parnassus St Mary's Medical Center California Pacific Medical Center East Campus California Pacific Medical Center California Campus Kaiser Permanente Santa Clara Medical Center Seton Medical Center Coastside San Francisco VA Medical Center O'Connor Hospital Regional Medical Center of San Jose John Muir Medical Center Concord Campus John Muir Behavioral Health Center Santa Clara Valley Medical Center VA Northern CA Healthcare System at Martinez Doctor's Medical Center San Pablo Contra Costa Regional Medical Center El Camino Hospital of Los Gatos Good Samaritan Hospital San Jose Good Samaritan Hospital Mission Oaks Sutter Delta Medical Center Marin General Hospital Kentfield Rehabilitation & Specialty Hospital Kaiser Permanente San Jose Medical Center St Helena Hospital Center for Behavioral Health Kaiser Permanente San Rafael Medical Center Kaiser Permanente Vallejo Medical Center Sutter Solano Medical Center 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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