Electroretinography Center - San Ramon, CA
San Ramon 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 Ramon * East Bay Retina Consultants  Day & Good MDs  East Bay Retina Consultants  East Bay Retina Consultants  East Bay Eye Center  East Bay Eye Center  Children's Eye Care of Northern California  Danville San Ramon Eye Medical Corp  Danville San Ramon Eye Medical Corp  Danville San Ramon Eye Medical Corp  Auker Eye Institute  Castro Valley Eye Center  Castro Valley Eye Center  Castro Valley Eye Center  Eye Specialties Medical Group  Bay Area Retina Associates  Eye Specialties Medical Group  Bay Area Retina Associates  Bay Area Retina Associates  Michelle W Liu MD  Walnut Creek Optical  Chou Harrison & Paul MD  Walnut Creek Optical  Chou Harrison & Paul MD  Chou Harrison & Paul MD  Optima Ophthalmic Medical Associates Inc  Optima Ophthalmic Medical Associates Inc  Optima Ophthalmic Medical Associates Inc  Optima Ophthalmic Medical Associates Inc  LaserVue Eye Center  Diablo Valley Eye Center  Diablo Valley Eye Center  Diablo Valley Eye Center  Bay Area Retina Associates  Diablo Valley Eye Center  Rona Z Silkiss MD  Bay Area Retina Associates  Pacific Eye Care Center  Kaiser Permanente Park Shadelands Ophthalmology  Kaiser Permanente Park Shadelands Ophthalmology  Kaiser Permanente Park Shadelands Ophthalmology  California Eye Clinic  California Eye Clinic  Kaiser Permanente Park Shadelands Ophthalmology  Kaiser Permanente Park Shadelands Ophthalmology  Kaiser Permanente Park Shadelands Ophthalmology  Kaiser Permanente Park Shadelands Ophthalmology  Kaiser Permanente Park Shadelands Ophthalmology  Kaiser Permanente Park Shadelands Ophthalmology  Batra Vision Medical Group  Batra Vision Medical Group  Batra Vision Medical Group  Chi-Hua Maria Fang MD  Turner Eye Institute Medical Group  Kaiser Union City Eye Services  Kaiser Union City Eye Services  Kaiser Union City Eye Services  Kaiser Union City Eye Services  Kaiser Union City Eye Services  Kaiser Union City Eye Services  Kaiser Union City Eye Services  Kaiser Union City Eye Services  Kaiser Union City Eye Services  Lerner Eye Center  Contra Costa Eye Medical Center  Contra Costa Eye Medical Center  Mission Valley Medical Eye Center  Contra Costa Eye Medical Center  Lerner Eye Center  Paul Row MD  Singer Cohn & Catmzaro MDs  Maskeen Sabharwal MD  Singer Cohn & Catmzaro MDs  James J Song MD  Fang Tan MD  Kenneth C Low MD APC  Kenneth C Low MD APC  Kenneth C Low MD APC  Clark S Tsai MD Inc  Palo Alto Medical Foundation Fremont Center  Robert C Black MD  Eye Physicians of the East Bay  Suraj Cherry MD  Veterans Administration Outpatient Clinic  Veterans Administration Outpatient Clinic  Eye Clinic  Eye Clinic  Philip L Gardner MD Inc  Philip L Gardner MD Inc  Philip L Gardner MD Inc  Stephen E Post MD & Sophia Chen MD  Gupta Etwaru MD  Stephen E Post MD & Sophia Chen MD  Kaiser Permanente Oakland Eye Care Services  Kaiser Permanente Oakland Ophthalmology  Kaiser Permanente Oakland Ophthalmology  Kaiser Permanente Oakland Ophthalmology  Kaiser Permanente Oakland Eye Care Services  John C Alden MD  Newton Medical Group San Ramon, 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 Ramon
Nearby San Ramon Hospitals *San Ramon Regional Medical Center ValleyCare Health System Pleasanton Eden Medical Center Kaiser Permanente Walnut Creek Medical Center John George Psychiatric Pavilion Alameda County Medical Center Fairmont Campus Kindred Hospital San Francisco Bay Area John Muir Medical Center Walnut Creek Campus San Leandro Hospital St Rose Hospital Valley Memorial Hospital Kaiser Permanente Hayward Medical Center Alameda County Medical Center Highland Campus John Muir Medical Center Concord Campus John Muir Behavioral Health Center Washington Hospital Livermore Division of the VA Palo Alto Healthcare System Alameda Hospital Fremont Hospital Kaiser Permanente Medical Center at Oakland Alta Bates Summit Medical Center Summit Campus Sutter Delta Medical Center Alta Bates Summit Medical Center Alta Bates Campus Children's Hospital & Research Center Oakland VA Northern CA Healthcare System at Martinez Alta Bates Summit Medical Center Herrick Campus Contra Costa Regional Medical Center Doctor's Medical Center San Pablo San Francisco General Hospital Chinese Hospital Menlo Park Surgical Hospital Kaiser Permanente Redwood City Medical Center Mills Hospital Saint Francis Memorial Hospital San Mateo Medical Center St Luke's Hospital California Pacific Medical Center Pacific Campus California Pacific Medical Center Davies Campus Sequoia Hospital UCSF Medical Center at Mount Zion Kaiser Permanente San Francisco Medical Center Lucile Packard Children's Hospital Mills-Peninsula Health Services Stanford Hospital & Clinics California Pacific Medical Center East Campus St Mary's Medical Center California Pacific Medical Center California Campus UCSF Medical Center at Parnassus Laguna Honda Hospital & Rehabilitation Center Kaiser Permanente South San Francisco Medical Center VA Palo Alto Health Care System St Helena Hospital Center for Behavioral Health Seton Medical Center Sutter Solano Medical Center Kaiser Permanente Vallejo Medical Center El Camino Hospital Sutter Tracy Community Hospital Regional Medical Center of San Jose San Francisco VA Medical Center Kaiser Permanente Santa Clara Medical Center O'Connor Hospital Santa Clara Valley Medical Center Telecare Solano Psychiatric Health Facility Marin General Hospital Kentfield Rehabilitation & Specialty Hospital NorthBay Medical Center Seton Medical Center Coastside 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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