Electroretinography Center - Rowland Heights, CA
Rowland Heights 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 Rowland Heights * Susie Y Wong  I Q Laser Vision  OIC Eye Group  Garlan Lo MD  Jan S Lukac MD  Southern California Eye Care  Peter T Chen MD  Glen Jarus MD  Vision Care Network  Wayne Martin MD  Magan Medical Clinic  John S Marshburn MD  David Marshburn DO  Retina Consultants of Orange County  Dualan & Frey MDs  Atlantis Eye Care  Sam Goldberger MD  Retina Consultants of Orange County  Lingua Vision Surgical Group  Atlantis Eye Care  John D Zdral MD John Esser MD  J Nickolas Berbos MD  Fullerton Eye Medical Center  William Mosier MD  William N May MD  Nicholas Kokoris MD & Associates  Nicholas Kokoris MD & Associates  Frederick Raymond MD  Jeffrey V Winston MD  Jeffrey V Winston MD  Hyong S Choe MD  Sally I Kim MD  Foothill Eye Surgical Center  Kurwa Eye Center  York Laser Eye Medical  California Eye Specialists  California Eye Specialists  California Eye Specialists  California Eye Specialists  Randolph J Falk MD  El Monte Eye Clinic  Atlantis Eyecare  Ocular Surgery Medical Associates  Ocular Surgery Medical Associates  Dennis Chuck MD  California Laser Eye Associates  Advanced Eye Center  Dai Le Tran MD  Robert Everakes MD  Nelson Noguchi MD  Montebello Eye Center  Montebello Eye Center  Arthur D Charap MD  NuVision Laser  LaPalma Ophthalmology Associates  LaPalma Ophthalmology Associates  Chien Ko Wu & Meei Ling Wu MDs  Tran Loan MD Corporation  Chang Eye Clinic  Mark H Barak MD  Roger Chan MD  UCI Medical Center Ophthalmology  Arcadia Eye Center  Doheny Eye Center Arcadia  Doheny Eye Center Arcadia  Doheny Eye Center Arcadia  George H Garcia MD Inc  George H Garcia MD Inc  Phillips Eye Center  Phillips Eye Center  Jose C Briones Jr. MD  John Kleinberg MD  Sheldon Nankin MD  Aisha Simjee MD  Charles E Keller MD  Felizardo S Camilon MD  Retina Institute  David A Sami MD  Orange County Ophthalmology  Florencio C Ching MD  Orange County Ophthalmology  Robert A Innocenzi MD  Cerritos Eye Medical Center  Theodore B Okie MD  Brian M Brown MD  De La Pena Eye Clinic  Ophthalmology Corporation  Alice Song MD Corp  Kenneth Sall MD  Stanley S. Kim MD  Lo Medical Group  Claremont Eye Associates  Claremont Eye Associates  Claremont Eye Associates  Kevin T Wong MD  Kevin T Wong MD  San Gabriel Eye Associates  San Gabriel Eye Associates  Ted Wei MD  Joseph K W Hsu MD PC Rowland Heights, CaliforniaUpcoming Local Events2012-06-10
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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 Rowland Heights
Nearby Rowland Heights Hospitals *Kindred Hospital Brea Citrus Valley Medical Center Queen of the Valley Campus Doctor's Hospital West Covina Vista Specialty Hospital of San Gabriel Valley Whittier Hospital Medical Center Kindred Hospital San Gabriel Valley St Jude Medical Center Kaiser Permanente Medical Center Baldwin Park Citrus Valley Medical Center Inter Community Campus Kindred Hospital La Mirada Placentia-Linda Hospital Aurora Charter Oak Hospital Presbyterian Intercommunity Hospital San Dimas Community Hospital Greater El Monte Community Hospital Anaheim Regional Medical Center East Valley Hospital Medical Center Metropolitan State Hospital Foothill Presbyterian Hospital Kaiser Permanente Anaheim Medical Center Norwalk Community Hospital BHC Alhambra Hospital City of Hope National Medical Center Pomona Valley Hospital Medical Center Beverly Hospital Western Medical Center Anaheim Casa Colina Centers for Rehabilitation Coast Plaza Doctors Hospital La Palma Intercommunity Hospital West Anaheim Medical Center Methodist Hospital Chino Valley Medical Center City of Angels Medical Center Ingleside Campus Anaheim General Hospital College Hospital Cerritos Montclair Hospital Medical Center Downey Regional Medical Center Garfield Medical Center Kaiser Permanente Downey Medical Center University Of California Irvine Medical Center San Gabriel Valley Medical Center Monterey Park Hospital St Joseph Hospital Children's Hospital Orange County Chapman Medical Center HealthBridge Children's Rehabilitation Hospital Tri-City Regional Medical Center Garden Grove Hospital & Medical Center Aurora Las Encinas Hospital Bellflower Medical Center Rancho Los Amigos National Rehabilitation Center Alhambra Hospital Medical Center Kindred Hospital Santa Ana Los Alamitos Medical Center Kindred Hospital Ontario East Los Angeles Doctors Hospital Los Angeles Community Hospital Kindred Hospital Westminster Promise Hospital of East Los Angeles Suburban Medical Center Campus Lakewood Regional Medical Center Western Medical Center Santa Ana HEALTHSOUTH Tustin Rehabilitation Hospital San Antonio Community Hospital Huntington Hospital St Francis Medical Center USC University Hospital LAC + USC Medical Center LAC + USC Medical Center Women's & Children's Hospital Promise Hospital of East Los Angeles USC Norris Comprehensive Cancer Center Community Hospital of Huntington Park Tustin Hospital & Medical Center White Memorial Medical Center Fountain Valley Regional Hospital & Medical Center Coastal Communities 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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