Electroretinography Center - Rosemead, CA
Rosemead 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 Rosemead * OIC Eye Group  Dai Le Tran MD  Roger Chan MD  San Gabriel Eye Associates  San Gabriel Eye Associates  El Monte Eye Clinic  William Ko MD  Randolph J Falk MD  Chang Eye Clinic  Ted Wei MD  Kevin T Wong MD  Kevin T Wong MD  Quon Medical Center  Arcadia Eye Center  Doheny Eye Center Arcadia  Lo Medical Group  Doheny Eye Center Arcadia  Doheny Eye Center Arcadia  Retina Eye Specialists  Dik Cheung MD  Phillips Eye Center  Kurwa Eye Center  Grace Liu MD  Phillips Eye Center  Agape Eye Associates  Mitchell Latter MD Inc  Calvin T Eng MD  Paul T Urrea MD  Montebello Eye Center  Montebello Eye Center  Almira Cann MD  NuVision Laser  De La Pena Eye Clinic  Michael J Miller MD  Karen Morgan MD  Foothill Eye Surgical Center  Warren C Stout MD  Warren C Stout MD  Vitreo-Retinal Associates  Vitreo-Retinal Associates  California Eye Specialists  California Eye Specialists  California Eye Specialists  Southern California Glaucoma Consultants  Ophthalmology Corporation  Pasadena Eye Medical Group  Nazareth E Darakjian MD  Eyesthetica  Jeffrey C Hong MD  Marta L Mora MD  Pasadena Eye Medical Group  Pasadena Eye Medical Group  Pasadena Eye Medical Group  Glen Jarus MD  Frederick Raymond MD  Ocular Surgery Medical Associates  Nicholas Kokoris MD & Associates  Nicholas Kokoris MD & Associates  Ocular Surgery Medical Associates  White Memorial Medical Center  Alice Song MD Corp  Children's Retina Institute  Doheny Eye Institute Los Angeles  Doheny Eye Institute Los Angeles  Doheny Eye Institute Los Angeles  Doheny Eye Institute Los Angeles  Children's Hospital Los Angeles Ophthalmology  Stephen J Ryan MD  Doheny Eye Institute Los Angeles  Doheny Eye Institute Los Angeles  Ronald E Smith MD  Doheny Eye Institute Los Angeles  Doheny Eye Institute Los Angeles  Doheny Eye Institute Los Angeles  Peter T Chen MD  Carl J Gordon MD  Theodore B Okie MD  R Philip Doss MD  Thomas Smith MD  Brian M Brown MD  Casimiro Gonzalez MD  William N May MD  Joseph K W Hsu MD PC  Downey Eye Center  John S Marshburn MD  David Marshburn DO  Hill Eye Center  Tsuyoshi Yamashita MD  Garlan Lo MD  Southern California Eye Care  Magan Medical Clinic  Tran Loan MD Corporation  Delapena Eye Clinic  Dualan & Frey MDs  Delapena Eye Clinic  Albert Baktanian MD  Vision Care Medical Group  Vision Care Medical Group  Kenneth Cohn MD  Sahag A Baghdassarian MD Rosemead, 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 Rosemead
Nearby Rosemead Hospitals *BHC Alhambra Hospital City of Angels Medical Center Ingleside Campus San Gabriel Valley Medical Center Garfield Medical Center Greater El Monte Community Hospital Alhambra Hospital Medical Center Monterey Park Hospital Methodist Hospital Aurora Las Encinas Hospital Beverly Hospital Kaiser Permanente Medical Center Baldwin Park Huntington Hospital Vista Specialty Hospital of San Gabriel Valley City of Hope National Medical Center East Los Angeles Doctors Hospital USC University Hospital USC Norris Comprehensive Cancer Center Citrus Valley Medical Center Queen of the Valley Campus Doctor's Hospital West Covina Los Angeles Community Hospital LAC + USC Medical Center LAC + USC Medical Center Women's & Children's Hospital Presbyterian Intercommunity Hospital Promise Hospital of East Los Angeles White Memorial Medical Center Kindred Hospital San Gabriel Valley Pacific Alliance Medical Center Kaiser Mental Health Center Barlow Respiratory Hospital Whittier Hospital Medical Center Glendale Adventist Medical Center Gateways Hospital & Mental Health Center Citrus Valley Medical Center Inter Community Campus Downey Regional Medical Center Community Hospital of Huntington Park Metropolitan State Hospital Glendale Memorial Hospital & Health Center Good Samaritan Hospital California Hospital Medical Center St Vincent Medical Center Rancho Los Amigos National Rehabilitation Center Coast Plaza Doctors Hospital Kaiser Permanente Downey Medical Center Norwalk Community Hospital Verdugo Hills Hospital Orthopaedic Medical Center Kindred Hospital La Mirada Temple Community Hospital Shriners Hospitals for Children Los Angeles Aurora Charter Oak Hospital Foothill Presbyterian Hospital Childrens Hospital Los Angeles Hollywood Presbyterian Medical Center Kaiser Permanente Los Angeles Medical Center East Valley Hospital Medical Center St Francis Medical Center College Hospital Cerritos Los Angeles Metropolitan Medical Center San Dimas Community Hospital Hollywood Community Hospital Martin Luther King Jr MAC Service Center Promise Hospital of East Los Angeles Suburban Medical Center Campus Bellflower Medical Center Kindred Hospital Brea VA Greater Los Angeles HealthCare System Providence Saint Joseph Medical Center St Jude Medical Center Lakewood Regional Medical Center La Palma Intercommunity Hospital Olympia Medical Center Miracle Mile Medical Center Tri-City Regional Medical Center Cedars-Sinai Medical Center Kaiser Permanente West Los Angeles Medical Center 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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