Electroretinography Center - San Rafael, CA
San Rafael 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 San Rafael * MarinEyes (Marin Ophthalmic Consultants)  MarinEyes (Marin Ophthalmic Consultants)  MarinEyes (Marin Ophthalmic Consultants)  Gregg S Gayre MD  Robert Anderson MD  Eye Institute of Marin  Shimokaji & Shapiro MDs  A Alan Weber MD  Robert A Yohai MD  Randall Chapman MD  Kaiser Medical Center in Richmond Pediatrics  Kaiser Medical Center in Richmond Pediatrics  Dilys J Bart MD  St Francis Ophthalmology Group  Steven N Cohen MD  J Brooks Crawford MD  Marc P Cruciger MD  Michael Turan MD  Denny Eye & Laser Center  Pacific Eye Associates  Pacific Eye Associates  Pacific Eye Associates  Day & Good MDs  Pacific Eye Associates  Pacific Eye Associates  Day & Good MDs  Pacific Eye Associates  Pacific Eye Associates  Suzanne G Li MD  Pacific Eye Associates  Pacific Eye Associates  Pacific Eye Associates  Pacific Eye Associates  Alan B Scott MD  Pacific Eye Associates  Rona Z Silkiss MD  Pacific Eye Associates  Daniel F Goodman Medical Group Inc  Pacific Eye Specialists CPMC  Pacific Eye Specialists CPMC  Pacific Eye Specialists CPMC  Pacific Eye Specialists CPMC  M David Thier MD  Glaucoma Specialists  Glaucoma Specialists  LaserVue Eye Center  Pacific Vision Institute  Pacific Vision Institute  Ervin P Wong MD  Gary L Aguilar MD  L Eric Leung MD  David S Yee MD  Optima Ophthalmic Medical Associates Inc  Melvyn D Bert MD FACS  Eye Care Associates of San Francisco  Eye Care Associates of San Francisco  Eye Care Associates of San Francisco  Lillie A Mosaddegh MD  Ze Woong Yang MD  UCSF Beckman Vision Center  UCSF Beckman Vision Center  UCSF Beckman Vision Center  UCSF Beckman Vision Center  UCSF Beckman Vision Center  UCSF Beckman Vision Center  UCSF Beckman Vision Center  UCSF Beckman Vision Center  UCSF Beckman Vision Center  UCSF Beckman Vision Center  UCSF Beckman Vision Center  UCSF Beckman Vision Center  UCSF Beckman Vision Center  UCSF Beckman Vision Center  UCSF Beckman Vision Center  UCSF Beckman Vision Center  UCSF Beckman Vision Center  UCSF Beckman Vision Center  Proctor Medical Group  Dean R Hirabayashi MD  Proctor Medical Group  Proctor Medical Group  Proctor Medical Group  Glaucoma Center of San Francisco  Glaucoma Center of San Francisco  Glaucoma Center of San Francisco  Glaucoma Center of San Francisco  Glaucoma Center of San Francisco  Glaucoma Center of San Francisco  Glaucoma Center of San Francisco  Barry E Breaux MD  Devron H Char MD  San Francisco Eye Institute  Paul H Ryan MD  Ellis Eye & Laser Medical Centers  West Coast Retina Medical Group Inc  West Coast Retina Medical Group Inc  West Coast Retina Medical Group Inc  West Coast Retina Medical Group Inc  Mary Ann Banez MD  Earl L Stern MD San Rafael, 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 San Rafael
Nearby San Rafael Hospitals *Kentfield Rehabilitation & Specialty Hospital Marin General Hospital Kaiser Permanente San Rafael Medical Center Novato Community Hospital Doctor's Medical Center San Pablo San Francisco VA Medical Center California Pacific Medical Center California Campus California Pacific Medical Center East Campus California Pacific Medical Center Pacific Campus Chinese Hospital Kaiser Permanente San Francisco Medical Center UCSF Medical Center at Mount Zion Saint Francis Memorial Hospital St Mary's Medical Center California Pacific Medical Center Davies Campus UCSF Medical Center at Parnassus Alta Bates Summit Medical Center Herrick Campus Laguna Honda Hospital & Rehabilitation Center San Francisco General Hospital St Luke's Hospital Alta Bates Summit Medical Center Alta Bates Campus Children's Hospital & Research Center Oakland Alta Bates Summit Medical Center Summit Campus Kaiser Permanente Medical Center at Oakland St Helena Hospital Center for Behavioral Health Kaiser Permanente Vallejo Medical Center Sutter Solano Medical Center Petaluma Valley Hospital Alameda County Medical Center Highland Campus Seton Medical Center Alameda Hospital Contra Costa Regional Medical Center Sonoma Valley Hospital Kaiser Permanente South San Francisco Medical Center VA Northern CA Healthcare System at Martinez Napa State Hospital Kaiser Permanente Walnut Creek Medical Center John Muir Behavioral Health Center John Muir Medical Center Walnut Creek Campus John Muir Medical Center Concord Campus Queen of the Valley Medical Center San Leandro Hospital Kindred Hospital San Francisco Bay Area John George Psychiatric Pavilion Alameda County Medical Center Fairmont Campus Mills-Peninsula Health Services Mills Hospital Eden Medical Center Seton Medical Center Coastside Telecare Solano Psychiatric Health Facility NorthBay Medical Center Palm Drive Hospital San Mateo Medical Center Santa Rosa Memorial Hospital Main Campus Kaiser Permanente Hayward Medical Center St Rose Hospital San Ramon Regional 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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