Electroretinography Center - Yorba Linda, CA
Yorba Linda 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 Yorba Linda * John S Marshburn MD  John D Zdral MD John Esser MD  Vision Care Network  Arthur D Charap MD  Jan S Lukac MD  Chien Ko Wu & Meei Ling Wu MDs  J Nickolas Berbos MD  Fullerton Eye Medical Center  William Mosier MD  Retina Consultants of Orange County  Sam Goldberger MD  Retina Consultants of Orange County  Lingua Vision Surgical Group  George H Garcia MD Inc  George H Garcia MD Inc  Wayne Martin MD  Retina Institute  Florencio C Ching MD  John Kleinberg MD  Sheldon Nankin MD  David A Sami MD  Aisha Simjee MD  Charles E Keller MD  Felizardo S Camilon MD  UCI Medical Center Ophthalmology  I Q Laser Vision  Hyong S Choe MD  Susie Y Wong  OIC Eye Group  Orange County Retina Medical Group  Orange County Retina Medical Group  Orange County Retina Medical Group  Advanced Eye Center  David Sacks MD  Sierra Eye & Laser Institute  Paul A Brailsford MD  Pacific Eye Medical Group  Michael B Lappin MD  Pacific Eye Medical Group  Garlan Lo MD  Orange County Ophthalmology  Retina Associates of Orange County  Orange County Ophthalmology  Southern California Eye Care  Atlantis Eyecare  Sally I Kim MD  David Marshburn DO  Jeffrey V Winston MD  Jeffrey V Winston MD  Robert A Innocenzi MD  Robert Everakes MD  Nelson Noguchi MD  Ophthalmology Corporation  Alice Song MD Corp  Richard L Nguyen MD  Eye Associates of Orange County  William N May MD  Thanhlan Quan MD  Viet Dang MD  Stanley S. Kim MD  California Laser Eye Associates  Dennis Chuck MD  Magan Medical Clinic  Chao Vision Institute  Atlantis Eye Care  Daniel C Kline MD Inc  Arthur Lu MD  Atlantis Eye Care  Triet M Nguyen MD  Mark Bronstein MD  Dualan & Frey MDs  Orange Coast Eye Center  Advanced Eye Care Clinic  Premier Eye Institute  South Coast Laser Center  South Coast Laser Center  Orange Coast Eye Center  Cuong-Dung T Do MD  Peter T Chen MD  Glen Jarus MD  Bolsa Laser Eye Center  Lakeside Vision Center  Lakeside Vision Center  LaPalma Ophthalmology Associates  LaPalma Ophthalmology Associates  Lasik Center Medical Group Inc  Universal Vision Medical Center  Nicholas Kokoris MD & Associates  Nicholas Kokoris MD & Associates  Frederick Raymond MD  Mark H Barak MD  Shahla Abedi MD Inc  Shahla Abedi MD Inc  Irvine Eye Physicians and Surgeons Inc  Irvine Eye Physicians and Surgeons Inc  VMR Institute  Howard Conn MD Inc  Jayne N Ge MD  Carson,McBeath & Boswell, Inc.  Marjorie A Mosier MD Yorba Linda, 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 a visual field test?A visual field test is a method of measuring an individual's entire scope of vision, that is their central and peripheral (side) vision. Visual field testing actually maps the visual fields of each eye individually. The visual field test is a subjective examination, requiring the patient to understand the testing instructions, fully cooperate, and complete the entire test in order to provide useful information. What is a visual field test used for?Visual field testing is most frequently used to detect any signs of glaucoma damage to the optic nerve. In addition, visual field tests are useful for detection of central or peripheral retinal disease, eyelid conditions such as ptosis or drooping, optic nerve disease, and diseases affecting the visual pathways within the brain. The visual pathways carry information from the eye to the visual or occipital cortex in the brain, where this information is proces... Other Related Electroretinography ArticlesEmergency Contact for Yorba Linda
Nearby Yorba Linda Hospitals *Placentia-Linda Hospital Kaiser Permanente Anaheim Medical Center Kindred Hospital Brea St Jude Medical Center Anaheim Regional Medical Center Western Medical Center Anaheim Chapman Medical Center HealthBridge Children's Rehabilitation Hospital St Joseph Hospital Children's Hospital Orange County University Of California Irvine Medical Center Garden Grove Hospital & Medical Center Western Medical Center Santa Ana Kindred Hospital Santa Ana HEALTHSOUTH Tustin Rehabilitation Hospital West Anaheim Medical Center Kindred Hospital La Mirada Tustin Hospital & Medical Center Whittier Hospital Medical Center Anaheim General Hospital Chino Valley Medical Center La Palma Intercommunity Hospital Coastal Communities Hospital Kindred Hospital Westminster Pomona Valley Hospital Medical Center Citrus Valley Medical Center Queen of the Valley Campus Fountain Valley Regional Hospital & Medical Center Norwalk Community Hospital Metropolitan State Hospital Presbyterian Intercommunity Hospital Doctor's Hospital West Covina Kindred Hospital San Gabriel Valley Citrus Valley Medical Center Inter Community Campus San Dimas Community Hospital Vista Specialty Hospital of San Gabriel Valley Aurora Charter Oak Hospital Casa Colina Centers for Rehabilitation Corona Regional Medical Center Montclair Hospital Medical Center Kaiser Permanente Medical Center Baldwin Park Orange Coast Memorial Medical Center Los Alamitos Medical Center Tri-City Regional Medical Center Corona Regional Medical Center Rehabilitation Coast Plaza Doctors Hospital College Hospital Cerritos Huntington Beach Hospital Kindred Hospital Ontario Kaiser Permanente Orange County Irvine Medical Center Greater El Monte Community Hospital East Valley Hospital Medical Center Foothill Presbyterian Hospital College Hospital Costa Mesa Bellflower Medical Center Kaiser Permanente Downey Medical Center Downey Regional Medical Center Beverly Hospital San Antonio Community Hospital BHC Alhambra Hospital City of Hope National Medical Center VA Long Beach Healthcare System Lakewood Regional Medical Center Hoag Memorial Hospital Presbyterian Promise Hospital of East Los Angeles Suburban Medical Center Campus Rancho Los Amigos National Rehabilitation Center Community Hospital of Long Beach Kaiser Permanente Riverside Medical Center City of Angels Medical Center Ingleside Campus Saddleback Memorial Medical Center Laguna Hills Methodist Hospital Rancho Specialty Hospital Garfield Medical Center Monterey Park Hospital Long Beach Memorial Medical Center Miller Children's Hospital 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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