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. |






































































































