Electroretinography Center - Woodland, CA
Woodland 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 Woodland * Jonathan P Perlman MD  Woodland Eye Institute Health Care  Woodland Eye Institute Health Care  Medical Vision Technology  Medical Vision Technology  H Douglas Cooper MD  Mercy Medical Group Ophthalmology  Medical Vision Technology  Medical Vision Technology  Medical Vision Technology  Medical Vision Technology  Center For Sight  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  Richard D Grutzmacher MD  Richard D Grutzmacher MD  Eye Site Sacramento Medical Group  Eye Site Sacramento Medical Group  Retinal Consultants  Retinal Consultants  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  Retinal Consultants  Retinal Consultants  Kaiser Permanente Medical Group  James M Reece Jr. MD  Retinal Consultants  Kaiser Permanente Medical Group  Kaiser Permanente Medical Group  Kaiser Permanente Medical Group  Kaiser Permanente Medical Group  Retinal Consultants  Denise Satterfield MD  Crosson Eye Medical Clinic  Phillip L Levy MD  Hillis L Warren MD  Griffin & Reed Eye Care  Griffin & Reed Eye Care  Griffin & Reed Eye Care  Michael J Schermer MD Inc  Sutter Regional Medical Foundation Care Ctr  Barbara J Arnold MD Inc  Sierra Eye Care  Sierra Eye Care  Royo Eye and Laser Center  Meister Eye & Laser Center  Jeffery W Adkins MD  Mercy Medical Group Ophthalmology  Michael S Jedrzynski MD  David W Ottman MD  Sutter North Medical Foundation  Ronald Kalayta MD Inc  Robert A Del Pero MD  Mather VA Eye Clinic  Royo Eye and Laser Center  Advanced Eye Surgery  Medical Vision Technology  Medical Vision Technology  Medical Vision Technology  Medical Vision Technology  Sutter Regional Medical Foundation Care Center  Cecille Taylor MD  Eye Care Center  The Eye Specialist Medical Group  Eye Care Center  The Eye Specialist Medical Group  Paul Row MD  SHAWN PALMER, M.D. INC.  Lerner Eye Center  California Eye Clinic  California Eye Clinic  California Eye Clinic  Lerner Eye Center  Suraj Cherry MD  Redwood Eye Center  Redwood Eye Center  Julie M Perry MD  Foreman Eye Care  Timothy H Patchett MD  Elliot S Eisenberg MD Woodland, CaliforniaUpcoming Local Events2012-06-03
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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 Woodland
Nearby Woodland Hospitals *Woodland Healthcare Sutter Davis Hospital Sutter General Hospital Mercy General Hospital UC Davis Medical Center Shriners Hospital Northern California Sutter Memorial Hospital Kaiser Permanente Sacramento Medical Center Sutter Center for Psychiatry Heritage Oaks Hospital Kaiser Permanente South Sacramento Medical Center Methodist Hospital of Sacramento Sierra Vista Hospital VacaValley Hospital Mercy San Juan Hospital Sacramento VA Medical Center Sutter Roseville Medical Center NorthBay Medical Center Kindred Hospital Sacramento Fremont Medical Center Rideout Memorial Hospital Mercy Hospital of Folsom Telecare Solano Psychiatric Health Facility 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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