Electroretinography Center - Rancho Cordova, CA
Rancho Cordova 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 Rancho Cordova * Mather VA Eye Clinic  Jeffery W Adkins MD  Michael S Jedrzynski MD  Mercy Medical Group Ophthalmology  David W Ottman MD  Retinal Consultants  Retinal Consultants  Michael J Schermer MD Inc  Griffin & Reed Eye Care  Griffin & Reed Eye Care  Griffin & Reed Eye Care  Phillip L Levy MD  Meister Eye & Laser Center  Hillis L Warren MD  Crosson Eye Medical Clinic  Kaiser Permanente Medical Group  Kaiser Permanente Medical Group  Kaiser Permanente Medical Group  Kaiser Permanente Medical Group  Kaiser Permanente Medical Group  Kaiser Permanente Medical Group  Kaiser Permanente Medical Group  Kaiser Permanente Medical Group  Kaiser Permanente Medical Group  Kaiser Permanente Medical Group  Kaiser Permanente Medical Group  Kaiser Permanente Medical Group  Kaiser Permanente Medical Group  Denise Satterfield MD  Retinal Consultants  Retinal Consultants  Richard D Grutzmacher MD  Richard D Grutzmacher MD  Retinal Consultants  James M Reece Jr. MD  Retinal Consultants  Eye Site Sacramento Medical Group  Eye Site Sacramento Medical Group  UC Health Care Systems  UC Health Care Systems  UC Health Care Systems  UC Health Care Systems  UC Health Care Systems  UC Health Care Systems  UC Health Care Systems  UC Health Care Systems  UC Davis Medical Group Dept of Ophthalmology  UC Health Care Systems  UC Health Care Systems  UC Health Care Systems  UC Health Care Systems  UC Health Care Systems  UC Health Care Systems  UC Davis Medical Group Dept of Ophthalmology  Barbara J Arnold MD Inc  Royo Eye and Laser Center  Sierra Eye Care  Sierra Eye Care  Center For Sight  Mercy Medical Group Ophthalmology  Medical Vision Technology  Medical Vision Technology  Medical Vision Technology  Medical Vision Technology  H Douglas Cooper MD  Medical Vision Technology  Medical Vision Technology  Medical Vision Technology  Medical Vision Technology  Cecille Taylor MD  SHAWN PALMER, M.D. INC.  Foreman Eye Care  Timothy H Patchett MD  Harland Langdon MD  Medical Vision Technology  Medical Vision Technology  Cedar Eye Center Medical Group  Cedar Eye Center Medical Group  Cedar Eye Center Medical Group  Woodland Eye Institute Health Care  Woodland Eye Institute Health Care  Jonathan P Perlman MD  Ronald E. Foltz, MD  Kaiser Stockton Ophthalmology  Kaiser Permanente Medical Center  Kaiser Stockton Ophthalmology  Kaiser Stockton Ophthalmology  Kaiser Stockton Ophthalmology  Kaiser Stockton Ophthalmology  Kaiser Permanente Medical Center  Kaiser Stockton Ophthalmology  Kaiser Stockton Ophthalmology  Kaiser Stockton Ophthalmology  Harold Hand MD  Central Valley Eye & Laser Center  New Start Medical Clinic  Delta Eye Medical Group  Delta Eye Medical Group  Delta Eye Medical Group  Delta Eye Medical Group Rancho Cordova, CaliforniaUpcoming Local Events2012-06-16
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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 Rancho Cordova
Nearby Rancho Cordova Hospitals *Sacramento VA Medical Center Kaiser Permanente Sacramento Medical Center Heritage Oaks Hospital Sutter Center for Psychiatry Mercy San Juan Hospital Sutter Memorial Hospital Mercy General Hospital Shriners Hospital Northern California UC Davis Medical Center Sutter General Hospital Kaiser Permanente South Sacramento Medical Center Methodist Hospital of Sacramento Sierra Vista Hospital Mercy Hospital of Folsom Kindred Hospital Sacramento Sutter Roseville Medical Center Sutter Davis Hospital Woodland Healthcare Sutter Auburn Faith Hospital Marshall Hospital Lodi Memorial Hospital Lodi Memorial Hospital West Sutter Amador 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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