Electroretinography Center - Corona, CA
Corona 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 Corona * Tri-County Eye Institute  A M Palanca-Capistrano MD Inc  Inland Valley Retina Medical Associates Inc  Khanna Institute of Lasik  Inland Valley Retina Medical Associates Inc  Inland Valley Retina Medical Associates Inc  Robert A Innocenzi MD  Retina Consultants of Southern California  Retina Consultants of Southern California  Riverside Medical Clinic  Riverside Medical Clinic  David R McGrew MD  Arthur D Charap MD  John D Zdral MD John Esser MD  Riverside Eye Specialists  Riverside Eye Specialists  Riverside Eye Specialists  Doheny Eye Center  Doheny Eye Center  Pabalan Eye Center  Atlantis Eyecare  Atlantis Eyecare  Childrens Eye Institute  Pacific Eye Institute  Pacific Eye Institute  Pacific Eye Institute  Pacific Eye Institute  Pacific Eye Institute  Carl S Shibata MD  Childrens Eye Institute  Pacific Eye Institute  Claremont Eye Associates  Claremont Eye Associates  Claremont Eye Associates  California Laser Eye Associates  Dennis Chuck MD  Chien Ko Wu & Meei Ling Wu MDs  John S Marshburn MD  Wayne Martin MD  Mark H Barak MD  Pacific Summit Eye Medical Center  Orange County Retina Medical Group  Orange County Retina Medical Group  Orange County Retina Medical Group  David Sacks MD  Sierra Eye & Laser Institute  Paul A Brailsford MD  Pacific Eye Medical Group  Michael B Lappin MD  Pacific Eye Medical Group  Vision Care Network  Robert S Herrick MD  Shahla Abedi MD Inc  Shahla Abedi MD Inc  Irvine Eye Physicians and Surgeons Inc  Irvine Eye Physicians and Surgeons Inc  Howard Conn MD Inc  Jayne N Ge MD  Marjorie A Mosier MD  Retina Institute  Florencio C Ching MD  Retina Associates of Orange County  Eye Center of Orange County  Eye Center of Orange County  Lakeside Vision Center  Lakeside Vision Center  John Cheng MD  Henry Cheng MD  William L McCarthy Jr. MD Inc  David A Sami MD  Jude J Santiago MD  George H Garcia MD Inc  George H Garcia MD Inc  Charles E Keller MD  Jan S Lukac MD  John Kleinberg MD  Daniel C Kline MD Inc  Sheldon Nankin MD  Aisha Simjee MD  Retina Associates of Orange County  M Polly McKinstry MD  Felizardo S Camilon MD  South Coast Eye Care Centers  South Coast Eye Care Centers  South Coast Eye Care Centers  South Coast Eye Care Centers  Harvard Eye Associates  Harvard Eye Associates  Harvard Eye Associates  Harvard Eye Associates  Harvard Eye Associates  Harvard Eye Associates  Chao Vision Institute  Eye Center  Advanced Eye Medical Group  Advanced Eye Medical Group  Inland Eye Institute  Inland Eye Institute  Eye Associates of Orange County  Eye Associates of Orange County Corona, 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 Corona
Nearby Corona Hospitals *Corona Regional Medical Center Corona Regional Medical Center Rehabilitation Kaiser Permanente Riverside Medical Center Parkview Community Hospital Medical Center Chino Valley Medical Center Riverside Community Hospital Kindred Hospital Ontario Kaiser Permanente Anaheim Medical Center Placentia-Linda Hospital Montclair Hospital Medical Center Chapman Medical Center Kaiser Permanente Fontana Medical Center Rancho Specialty Hospital San Antonio Community Hospital HealthBridge Children's Rehabilitation Hospital HEALTHSOUTH Tustin Rehabilitation Hospital Pomona Valley Hospital Medical Center Western Medical Center Santa Ana Tustin Hospital & Medical Center St Joseph Hospital Casa Colina Centers for Rehabilitation Children's Hospital Orange County Arrowhead Regional Medical Center Kindred Hospital Brea Kaiser Permanente Orange County Irvine Medical Center University Of California Irvine Medical Center Western Medical Center Anaheim Kindred Hospital Santa Ana Saddleback Memorial Medical Center Laguna Hills St Jude Medical Center Anaheim Regional Medical Center Garden Grove Hospital & Medical Center Vista Hospital of Riverside Coastal Communities Hospital San Dimas Community Hospital Loma Linda University Children's Hospital Loma Linda University Medical Center Loma Linda University Medical Center East Campus Riverside County Regional Medical Center VA Loma Linda Healthcare System Moreno Valley Community Hospital Children's Hospital of Orange County at Mission Mission Hospital Robert H Ballard Rehabilitation Hospital Aurora Charter Oak Hospital Community Hospital of San Bernardino Citrus Valley Medical Center Inter Community Campus Fountain Valley Regional Hospital & Medical Center Loma Linda University Behavioral Medicine Center Redlands Community Hospital East Valley Hospital Medical Center Kindred Hospital San Gabriel Valley West Anaheim Medical Center Foothill Presbyterian Hospital St Bernardine Medical Center Citrus Valley Medical Center Queen of the Valley Campus College Hospital Costa Mesa Doctor's Hospital West Covina Orange Coast Memorial Medical Center Anaheim General Hospital Whittier Hospital Medical Center Kindred Hospital La Mirada Kindred Hospital Westminster Menifee Valley Medical Center Vista Specialty Hospital of San Gabriel Valley Huntington Beach Hospital La Palma Intercommunity Hospital Hoag Memorial Hospital Presbyterian Kaiser Permanente Medical Center Baldwin Park Inland Valley Medical Center Mission Hospital Laguna Beach Presbyterian Intercommunity Hospital Norwalk Community Hospital Metropolitan State Hospital Los Alamitos Medical Center 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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