Electroretinography Center - Huntington Beach, CA
Huntington Beach 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 Huntington Beach * Clarity Eye Group  Clarity Eye Group  Clarity Eye Group  Clarity Eye Group  Clarity Eye Group  Beach Eye Medical Group Inc  Beach Eye Medical Group Inc  Pacifica Laser Eye Center  Global Laser Vision  Mary A Cote MD  Southland Eye  Southland Eye  VMR Institute  Carson,McBeath & Boswell, Inc.  Carson,McBeath & Boswell, Inc.  Carson,McBeath & Boswell, Inc.  VMR Institute  Robert G Starr MD PhD  Bolsa Laser Eye Center  Cuong-Dung T Do MD  Triet M Nguyen MD  Mark Bronstein MD  Orange Coast Eye Center  Premier Eye Institute  Advanced Eye Care Clinic  Orange Coast Eye Center  Arthur Lu MD  Universal Vision Medical Center  Orange County Retina Medical Group  Feinerman Vision Center  Orange County Retina Medical Group  Astorino Eye Center  Viet Dang MD  Aesthetic Eye Care Institute  Thanhlan Quan MD  Steven G Yoelin MD  Brent Norman MD  Richard L Nguyen MD  Stanley S. Kim MD  Ophthalmology Corporation  Alice Song MD Corp  Sean S Bahri MD  Gary S Reiter MD  South Coast Laser Center  South Coast Laser Center  Eye Associates of Orange County  Orange County Ophthalmology  Orange County Ophthalmology  TLC Laser Center  Lasik Center Medical Group Inc  Retina Consultants of Orange County  Lakewood Eye Physicians  W Andrew Cies MD  Cory Brame MD  Complete Eye Care  Complete Eye Care  Stephen Prepas MD  Complete Eye Care  Richard A Weiss MD  William P Chen MD FACS  Arlene Gwon MD  Stephen Johnson MD  Lyon Laser Eye Institute  Robert Everakes MD  Nelson Noguchi MD  Advanced Eye Center  UCI Medical Center Ophthalmology  UCI Medical Center Ophthalmology  UCI Medical Center Ophthalmology  Chao Vision Institute  UCI Medical Center Ophthalmology  UCI Medical Center Ophthalmology  UCI Medical Center Ophthalmology  UCI Medical Center Ophthalmology  UCI Medical Center Ophthalmology  UCI Medical Center Ophthalmology  UCI Medical Center Ophthalmology  UCI Medical Center Ophthalmology  UCI Medical Center Ophthalmology  UCI Medical Center Ophthalmology  Felizardo S Camilon MD  Katherine Tanaka MD Inc  John Kleinberg MD  Sheldon Nankin MD  Aisha Simjee MD  LaPalma Ophthalmology Associates  Charles E Keller MD  LaPalma Ophthalmology Associates  Atlantis Eyecare  Retina Associates of Orange County  David A Sami MD  Eye Physicians of Long Beach  George H Garcia MD Inc  Eye Physicians of Long Beach  George H Garcia MD Inc  Florencio C Ching MD  Retina Institute  Orange County Retina Medical Group  Paul A Brailsford MD  Hyong S Choe MD Huntington Beach, CaliforniaUpcoming Local Events2012-05-28
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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 Huntington Beach
Nearby Huntington Beach Hospitals *Huntington Beach Hospital Orange Coast Memorial Medical Center Fountain Valley Regional Hospital & Medical Center College Hospital Costa Mesa Hoag Memorial Hospital Presbyterian Kindred Hospital Westminster Coastal Communities Hospital Garden Grove Hospital & Medical Center Kindred Hospital Santa Ana Los Alamitos Medical Center VA Long Beach Healthcare System Anaheim General Hospital University Of California Irvine Medical Center West Anaheim Medical Center Children's Hospital Orange County Tustin Hospital & Medical Center St Joseph Hospital HEALTHSOUTH Tustin Rehabilitation Hospital Western Medical Center Santa Ana Western Medical Center Anaheim Community Hospital of Long Beach Tri-City Regional Medical Center La Palma Intercommunity Hospital HealthBridge Children's Rehabilitation Hospital Anaheim Regional Medical Center Chapman Medical Center St Mary Medical Center Kaiser Permanente Orange County Irvine Medical Center Long Beach Memorial Medical Center Miller Children's Hospital Pacific Hospital of Long Beach Lakewood Regional Medical Center College Hospital Cerritos Bellflower Medical Center St Jude Medical Center Kaiser Permanente Anaheim Medical Center Norwalk Community Hospital Kindred Hospital La Mirada Promise Hospital of East Los Angeles Suburban Medical Center Campus Placentia-Linda Hospital Coast Plaza Doctors Hospital Metropolitan State Hospital Saddleback Memorial Medical Center Laguna Hills Providence Little Company of Mary Medical Center San Pedro Kaiser Permanente Downey Medical Center Kaiser Permanente South Bay Medical Center Kindred Hospital Brea Whittier Hospital Medical Center Downey Regional Medical Center Mission Hospital Laguna Beach Rancho Los Amigos National Rehabilitation Center LAC Harbor UCLA Medical Center Presbyterian Intercommunity Hospital Children's Hospital of Orange County at Mission Mission Hospital St Francis Medical Center Del Amo Hospital Martin Luther King Jr MAC Service Center Torrance Memorial Medical Center Memorial Hospital of Gardena Vista Hospital of South Bay Providence Little Company of Mary Medical Center Torrance Beverly Hospital Community Hospital of Huntington Park Saddleback Memorial Medical Center San Clemente Greater El Monte Community Hospital Los Angeles Community Hospital Los Angeles Metropolitan Medical Center Hawthorne Campus East Los Angeles Doctors Hospital Kaiser Permanente Medical Center Baldwin Park Citrus Valley Medical Center Queen of the Valley Campus Vista Specialty Hospital of San Gabriel Valley Monterey Park Hospital BHC Alhambra Hospital Centinela Freeman Regional Medical Center Centinela Campus 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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Usher Syndrome
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