Electroretinography Center - Upland, CA
Upland 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 Upland * Childrens Eye Institute  Childrens Eye Institute  Pacific Eye Institute  Pacific Eye Institute  Pacific Eye Institute  Pacific Eye Institute  Pacific Eye Institute  Carl S Shibata MD  Pacific Eye Institute  Claremont Eye Associates  Claremont Eye Associates  Claremont Eye Associates  Mark H Barak MD  Robert A Innocenzi MD  California Laser Eye Associates  Dennis Chuck MD  Wayne Martin MD  Foothill Eye Surgical Center  Kurwa Eye Center  California Eye Specialists  California Eye Specialists  California Eye Specialists  California Eye Specialists  York Laser Eye Medical  Atlantis Eye Care  Atlantis Eye Care  Dualan & Frey MDs  Tri-County Eye Institute  Magan Medical Clinic  John D Zdral MD John Esser MD  Jose C Briones Jr. MD  Inland Valley Retina Medical Associates Inc  A M Palanca-Capistrano MD Inc  Khanna Institute of Lasik  Inland Valley Retina Medical Associates Inc  Inland Valley Retina Medical Associates Inc  I Q Laser Vision  Robert S Herrick MD  Susie Y Wong  Eye Center  Vision Care Network  John S Marshburn MD  Arthur D Charap MD  Riverside Eye Specialists  Riverside Eye Specialists  Riverside Eye Specialists  OIC Eye Group  Doheny Eye Center  Doheny Eye Center  Pabalan Eye Center  Peter T Chen MD  Glen Jarus MD  David R McGrew MD  Riverside Medical Clinic  Jan S Lukac MD  Riverside Medical Clinic  Garlan Lo MD  Retina Consultants of Southern California  Retina Consultants of Southern California  Edward J Puttre MD  Ocular Surgery Medical Associates  Ocular Surgery Medical Associates  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  Chien Ko Wu & Meei Ling Wu MDs  Southern California Eye Care  Inland Eye Institute  Inland Eye Institute  Inland Eye Institute  David Marshburn DO  NuVision Laser  George H Garcia MD Inc  Retina Institute  George H Garcia MD Inc  Florencio C Ching MD  David A Sami MD  Charles E Keller MD  John Kleinberg MD  Sheldon Nankin MD  Aisha Simjee MD  Hyong S Choe MD  Randolph J Falk MD  William N May MD  Felizardo S Camilon MD  El Monte Eye Clinic  UCI Medical Center Ophthalmology  LLUHC Ophthalmology  Orange County Retina Medical Group  LLUHC Ophthalmology  Orange County Retina Medical Group  LLUHC Ophthalmology  LLUHC Ophthalmology  Orange County Retina Medical Group  LLUHC Ophthalmology  LLUHC Ophthalmology Upland, 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 Upland
Nearby Upland Hospitals *San Antonio Community Hospital Kindred Hospital Ontario Montclair Hospital Medical Center Rancho Specialty Hospital Chino Valley Medical Center Casa Colina Centers for Rehabilitation Pomona Valley Hospital Medical Center San Dimas Community Hospital Aurora Charter Oak Hospital Kaiser Permanente Fontana Medical Center East Valley Hospital Medical Center Foothill Presbyterian Hospital Citrus Valley Medical Center Inter Community Campus Kindred Hospital San Gabriel Valley Corona Regional Medical Center Kaiser Permanente Riverside Medical Center Doctor's Hospital West Covina Citrus Valley Medical Center Queen of the Valley Campus Parkview Community Hospital Medical Center Arrowhead Regional Medical Center Corona Regional Medical Center Rehabilitation Riverside Community Hospital Kindred Hospital Brea Placentia-Linda Hospital Vista Specialty Hospital of San Gabriel Valley City of Hope National Medical Center Robert H Ballard Rehabilitation Hospital Community Hospital of San Bernardino Kaiser Permanente Medical Center Baldwin Park Kaiser Permanente Anaheim Medical Center St Jude Medical Center St Bernardine Medical Center Methodist Hospital Loma Linda University Children's Hospital Loma Linda University Medical Center Greater El Monte Community Hospital Whittier Hospital Medical Center VA Loma Linda Healthcare System Loma Linda University Medical Center East Campus Anaheim Regional Medical Center Chapman Medical Center BHC Alhambra Hospital Western Medical Center Anaheim HealthBridge Children's Rehabilitation Hospital Kindred Hospital La Mirada Presbyterian Intercommunity Hospital St Joseph Hospital Children's Hospital Orange County Aurora Las Encinas Hospital Loma Linda University Behavioral Medicine Center University Of California Irvine Medical Center Redlands Community Hospital San Gabriel Valley Medical Center Western Medical Center Santa Ana City of Angels Medical Center Ingleside Campus Beverly Hospital HEALTHSOUTH Tustin Rehabilitation Hospital Metropolitan State Hospital Garden Grove Hospital & Medical Center Norwalk Community Hospital Garfield Medical Center Kindred Hospital Santa Ana West Anaheim Medical Center Tustin Hospital & Medical Center Patton State Hospital La Palma Intercommunity Hospital Monterey Park Hospital Anaheim General Hospital Alhambra Hospital Medical Center Coast Plaza Doctors Hospital Huntington Hospital Riverside County Regional Medical Center College Hospital Cerritos Downey Regional Medical Center Mountains Community 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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