Electroretinography Center - Diamond Bar, CA
Diamond Bar 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 Diamond Bar * Wayne Martin MD  I Q Laser Vision  Susie Y Wong  OIC Eye Group  Vision Care Network  Atlantis Eye Care  Atlantis Eye Care  Jan S Lukac MD  Magan Medical Clinic  California Laser Eye Associates  Dennis Chuck MD  Garlan Lo MD  Dualan & Frey MDs  John S Marshburn MD  John D Zdral MD John Esser MD  Peter T Chen MD  Glen Jarus MD  Mark H Barak MD  Foothill Eye Surgical Center  Kurwa Eye Center  York Laser Eye Medical  Robert A Innocenzi MD  California Eye Specialists  California Eye Specialists  California Eye Specialists  California Eye Specialists  Retina Consultants of Orange County  Sam Goldberger MD  Retina Consultants of Orange County  Lingua Vision Surgical Group  J Nickolas Berbos MD  Fullerton Eye Medical Center  William Mosier MD  Southern California Eye Care  Claremont Eye Associates  Claremont Eye Associates  Claremont Eye Associates  Arthur D Charap MD  David Marshburn DO  William N May MD  Hyong S Choe MD  Chien Ko Wu & Meei Ling Wu MDs  Jose C Briones Jr. MD  Ocular Surgery Medical Associates  Jeffrey V Winston MD  Ocular Surgery Medical Associates  Jeffrey V Winston MD  Frederick Raymond MD  Nicholas Kokoris MD & Associates  Nicholas Kokoris MD & Associates  Sally I Kim MD  Atlantis Eyecare  Childrens Eye Institute  Pacific Eye Institute  Pacific Eye Institute  George H Garcia MD Inc  Pacific Eye Institute  Pacific Eye Institute  Pacific Eye Institute  Carl S Shibata MD  George H Garcia MD Inc  Childrens Eye Institute  Pacific Eye Institute  Randolph J Falk MD  El Monte Eye Clinic  Advanced Eye Center  John Kleinberg MD  UCI Medical Center Ophthalmology  Sheldon Nankin MD  Retina Institute  Aisha Simjee MD  Florencio C Ching MD  David A Sami MD  Charles E Keller MD  Felizardo S Camilon MD  NuVision Laser  Orange County Ophthalmology  Robert Everakes MD  Orange County Ophthalmology  Nelson Noguchi MD  Orange County Retina Medical Group  Orange County Retina Medical Group  Orange County Retina Medical Group  David Sacks MD  Sierra Eye & Laser Institute  Dai Le Tran MD  Paul A Brailsford MD  Pacific Eye Medical Group  Michael B Lappin MD  Pacific Eye Medical Group  Arcadia Eye Center  Doheny Eye Center Arcadia  Doheny Eye Center Arcadia  Doheny Eye Center Arcadia  Phillips Eye Center  Retina Associates of Orange County  Phillips Eye Center  LaPalma Ophthalmology Associates  LaPalma Ophthalmology Associates  Montebello Eye Center Diamond Bar, CaliforniaUpcoming Local Events2012-06-09
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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 Diamond Bar
Nearby Diamond Bar Hospitals *Kindred Hospital Brea San Dimas Community Hospital Pomona Valley Hospital Medical Center Aurora Charter Oak Hospital Citrus Valley Medical Center Inter Community Campus Kindred Hospital San Gabriel Valley Citrus Valley Medical Center Queen of the Valley Campus Casa Colina Centers for Rehabilitation Doctor's Hospital West Covina Placentia-Linda Hospital Chino Valley Medical Center East Valley Hospital Medical Center Vista Specialty Hospital of San Gabriel Valley Montclair Hospital Medical Center Foothill Presbyterian Hospital St Jude Medical Center Kaiser Permanente Medical Center Baldwin Park Kaiser Permanente Anaheim Medical Center Whittier Hospital Medical Center Kindred Hospital Ontario Kindred Hospital La Mirada City of Hope National Medical Center Anaheim Regional Medical Center Greater El Monte Community Hospital Presbyterian Intercommunity Hospital San Antonio Community Hospital Western Medical Center Anaheim BHC Alhambra Hospital Metropolitan State Hospital Chapman Medical Center Norwalk Community Hospital HealthBridge Children's Rehabilitation Hospital Methodist Hospital University Of California Irvine Medical Center St Joseph Hospital Children's Hospital Orange County Beverly Hospital West Anaheim Medical Center La Palma Intercommunity Hospital Anaheim General Hospital Garden Grove Hospital & Medical Center Rancho Specialty Hospital City of Angels Medical Center Ingleside Campus Coast Plaza Doctors Hospital Kindred Hospital Santa Ana Western Medical Center Santa Ana San Gabriel Valley Medical Center Corona Regional Medical Center Garfield Medical Center HEALTHSOUTH Tustin Rehabilitation Hospital College Hospital Cerritos Aurora Las Encinas Hospital Downey Regional Medical Center Monterey Park Hospital Kaiser Permanente Downey Medical Center Corona Regional Medical Center Rehabilitation Tri-City Regional Medical Center Tustin Hospital & Medical Center Alhambra Hospital Medical Center Kindred Hospital Westminster Bellflower Medical Center Los Alamitos Medical Center Rancho Los Amigos National Rehabilitation Center Coastal Communities Hospital East Los Angeles Doctors Hospital Los Angeles Community Hospital Huntington Hospital Promise Hospital of East Los Angeles Suburban Medical Center Campus Fountain Valley Regional Hospital & Medical Center Lakewood Regional Medical Center Kaiser Permanente Riverside Medical Center USC University Hospital USC Norris Comprehensive Cancer Center LAC + USC Medical Center LAC + USC Medical Center Women's & 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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