Electroretinography Center - San Leandro, CA
San Leandro 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 Leandro * Turner Eye Institute Medical Group  Batra Vision Medical Group  Batra Vision Medical Group  Batra Vision Medical Group  Eye Specialties Medical Group  Bay Area Retina Associates  Eye Specialties Medical Group  Bay Area Retina Associates  Bay Area Retina Associates  Castro Valley Eye Center  Castro Valley Eye Center  Castro Valley Eye Center  Optima Ophthalmic Medical Associates Inc  Optima Ophthalmic Medical Associates Inc  Optima Ophthalmic Medical Associates Inc  Optima Ophthalmic Medical Associates Inc  Philip L Gardner MD Inc  Stephen E Post MD & Sophia Chen MD  Philip L Gardner MD Inc  Philip L Gardner MD Inc  Stephen E Post MD & Sophia Chen MD  Eye Clinic  Eye Clinic  Newton Medical Group  Eye Physicians of the East Bay  Eye Physicians of the East Bay  Eye Physicians of the East Bay  Eye Physicians of the East Bay  Eye Physicians of the East Bay  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  Hubert Wong MD  Northern California Cornea Associates  Langham Lee & Horn MDs  Langham Lee & Horn MDs  Langham Lee & Horn MDs  Langham Lee & Horn MDs  Rona Z Silkiss MD  Northern California Cornea Associates  Kaiser Union City Eye Services  East Bay Retina Consultants  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  East Bay Retina Consultants  East Bay Retina Consultants  Kaiser Union City Eye Services  Kaiser Union City Eye Services  Kaiser Union City Eye Services  Children's Hospital Oakland  Chi-Hua Maria Fang MD  Sorenson Ophthalmology  Sorenson Ophthalmology  Sorenson Ophthalmology  Rose Shoshana Kiprov MD  Amater Z Traylor Jr. MD  Berkeley Ophthalmology Medical Group  Danville San Ramon Eye Medical Corp  Danville San Ramon Eye Medical Corp  Danville San Ramon Eye Medical Corp  Chou Harrison & Paul MD  Chou Harrison & Paul MD  Michelle W Liu MD  Chou Harrison & Paul MD  Walnut Creek Optical  Walnut Creek Optical  Day & Good MDs  East Bay Eye Center  East Bay Eye Center  Children's Eye Care of Northern California  Pacific Eye Care Center  LaserVue Eye Center  Diablo Valley Eye Center  Diablo Valley Eye Center  Diablo Valley Eye Center  Bay Area Retina Associates  Diablo Valley Eye Center  Bay Area Retina Associates  Ellis Eye & Laser Medical Centers  Peninsula Eye Physicians Group  Peninsula Eye Physicians Group  Peninsula Eye Physicians Group  Peninsula Eye Physicians Group  Peninsula Eye Physicians Group  San Francisco Eye Institute  N CA Retina Vitreous Associates Inc  N CA Retina Vitreous Associates Inc  L Scott Feiler MD  N CA Retina Vitreous Associates Inc  Glaucoma Specialists  N CA Retina Vitreous Associates Inc  N CA Retina Vitreous Associates Inc  N CA Retina Vitreous Associates Inc  Singer Cohn & Catmzaro MDs San Leandro, 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 Leandro
Nearby San Leandro Hospitals *San Leandro Hospital Kindred Hospital San Francisco Bay Area John George Psychiatric Pavilion Alameda County Medical Center Fairmont Campus Eden Medical Center Alameda Hospital Alameda County Medical Center Highland Campus St Rose Hospital Kaiser Permanente Hayward Medical Center Alta Bates Summit Medical Center Summit Campus Kaiser Permanente Medical Center at Oakland Children's Hospital & Research Center Oakland Alta Bates Summit Medical Center Alta Bates Campus Alta Bates Summit Medical Center Herrick Campus San Ramon Regional Medical Center Kaiser Permanente Walnut Creek Medical Center San Francisco General Hospital John Muir Medical Center Walnut Creek Campus St Luke's Hospital Chinese Hospital Mills Hospital ValleyCare Health System Pleasanton Saint Francis Memorial Hospital Washington Hospital California Pacific Medical Center Davies Campus California Pacific Medical Center Pacific Campus San Mateo Medical Center UCSF Medical Center at Mount Zion Fremont Hospital Kaiser Permanente San Francisco Medical Center Kaiser Permanente South San Francisco Medical Center Mills-Peninsula Health Services Laguna Honda Hospital & Rehabilitation Center St Mary's Medical Center UCSF Medical Center at Parnassus California Pacific Medical Center California Campus California Pacific Medical Center East Campus Kaiser Permanente Redwood City Medical Center Seton Medical Center Sequoia Hospital Doctor's Medical Center San Pablo Menlo Park Surgical Hospital VA Northern CA Healthcare System at Martinez John Muir Behavioral Health Center John Muir Medical Center Concord Campus San Francisco VA Medical Center Contra Costa Regional Medical Center Lucile Packard Children's Hospital Stanford Hospital & Clinics Valley Memorial Hospital VA Palo Alto Health Care System Livermore Division of the VA Palo Alto Healthcare System Seton Medical Center Coastside El Camino Hospital Marin General Hospital Kentfield Rehabilitation & Specialty Hospital Sutter Delta Medical Center St Helena Hospital Center for Behavioral Health Kaiser Permanente Vallejo Medical Center Sutter Solano Medical Center Kaiser Permanente Santa Clara Medical Center Kaiser Permanente San Rafael Medical Center O'Connor Hospital Regional Medical Center of San Jose Santa Clara Valley Medical Center Novato Community Hospital El Camino Hospital of Los Gatos Good Samaritan Hospital San Jose 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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