Electroretinography Center - Rohnert Park, CA
Rohnert Park 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 Rohnert Park * Eye Care Institute  Eye Care Institute  Eye Care Institute  Eye Care Institute  Paul F Campion MD  Robert A Yohai MD  Empire Eye Doctors  Empire Eye Doctors  North Bay Eye Associates  North Bay Eye Associates  Edward E Feldman MD  Summerfield Optical  Bruce D Gaynor MD  Summerfield Optical  Eye Associates of Sebastopol  Eye Associates of Sebastopol  LaserVue Eye Center  Retina Consultants  Retina Consultants  Retina Consultants  Retina Consultants  Roger D. Weeks, MD  Drs Dixon & Raaka  Drs Dixon & Raaka  Randall Chapman MD  Julie M Perry MD  Paul Rudolph Miller MD  Eye Institute of Marin  MarinEyes (Marin Ophthalmic Consultants)  MarinEyes (Marin Ophthalmic Consultants)  MarinEyes (Marin Ophthalmic Consultants)  Gregg S Gayre MD  Eye Care Center  The Eye Specialist Medical Group  Eye Care Center  The Eye Specialist Medical Group  Paul Row MD  A Alan Weber MD  Robert Anderson MD  Shimokaji & Shapiro MDs  Elliot S Eisenberg MD  Redwood Eye Center  Redwood Eye Center  Barry E Breaux MD  Paul H Ryan MD  Kaiser Medical Center in Richmond Pediatrics  Kaiser Medical Center in Richmond Pediatrics  Newman Lasik Centers  Ellis Eye & Laser Medical Centers  Dilys J Bart MD  St Francis Ophthalmology Group  Steven N Cohen MD  J Brooks Crawford MD  Marc P Cruciger MD  Michael Turan MD  East Bay Eye Center  Pacific Eye Associates  Pacific Eye Associates  Pacific Eye Associates  Day & Good MDs  Denny Eye & Laser Center  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  Pacific Eye Specialists CPMC  Pacific Eye Specialists CPMC  Pacific Eye Specialists CPMC  Pacific Eye Specialists CPMC  M David Thier MD  Daniel F Goodman Medical Group Inc  Sutter Regional Medical Foundation Care Center  Glaucoma Specialists  Glaucoma Specialists  Timothy L Young MD  Ervin P Wong MD  Gary L Aguilar MD  Pacific Vision Institute  Pacific Vision Institute  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 Rohnert Park, 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 Rohnert Park
Nearby Rohnert Park Hospitals *Santa Rosa Memorial Hospital Main Campus Palm Drive Hospital Petaluma Valley Hospital Sutter Medical Center of Santa Rosa Chanate Campus Kaiser Permanente Santa Rosa Medical Center Sonoma Valley Hospital St Helena Hospital Novato Community Hospital Healdsburg District Hospital Queen of the Valley Medical Center Napa State Hospital Kaiser Permanente San Rafael Medical Center Kentfield Rehabilitation & Specialty Hospital Marin General Hospital Kaiser Permanente Vallejo Medical Center St Helena Hospital Center for Behavioral Health Sutter Solano Medical Center Doctor's Medical Center San Pablo 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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