Electroretinography Center - Alameda, CA
Alameda 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 Alameda * Philip L Gardner MD Inc  Philip L Gardner MD Inc  Philip L Gardner MD Inc  Stephen E Post MD & Sophia Chen MD  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  John C Alden MD  Bay Area Retina Associates  Northern California Cornea Associates  Langham Lee & Horn MDs  Langham Lee & Horn MDs  Langham Lee & Horn MDs  Langham Lee & Horn MDs  Bay Area Retina Associates  Rona Z Silkiss MD  Northern California Cornea Associates  Bay Area Retina Associates  Hubert Wong MD  Kaiser Permanente Oakland Ophthalmology  Kaiser Permanente Oakland Ophthalmology  Kaiser Permanente Oakland Ophthalmology  East Bay Retina Consultants  Kaiser Permanente Oakland Eye Care Services  Kaiser Permanente Oakland Eye Care Services  East Bay Retina Consultants  East Bay Retina Consultants  Children's Hospital Oakland  Amater Z Traylor Jr. MD  Rose Shoshana Kiprov MD  Sorenson Ophthalmology  Sorenson Ophthalmology  Sorenson Ophthalmology  Berkeley Ophthalmology Medical Group  Turner Eye Institute Medical Group  Batra Vision Medical Group  Batra Vision Medical Group  Batra Vision Medical Group  East Bay Eye Center  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  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  Optima Ophthalmic Medical Associates Inc  Chi-Hua Maria Fang MD  Dean R Hirabayashi MD  Michael Turan MD  Ervin P Wong MD  Melvyn D Bert MD FACS  Eye Care Associates of San Francisco  Eye Care Associates of San Francisco  Eye Care Associates of San Francisco  L Eric Leung MD  Lillie A Mosaddegh MD  Ze Woong Yang MD  David S Yee MD  North East Medical Service  North East Medical Service  Eye Specialties Medical Group  Eye Specialties Medical Group  Gary L Aguilar MD  Mary Ann Banez MD  Premier Eyecare  Premier Eyecare  Premier Eyecare  LaserVue Eye Center  Pacific Vision Institute  Pacific Vision Institute  Castro Valley Eye Center  Day & Good MDs  Castro Valley Eye Center  Day & Good MDs  Castro Valley Eye Center  Pacific Eye Associates  Pacific Eye Associates  Pacific Eye Associates  Devron H Char MD  Optima Ophthalmic Medical Associates Inc  Denny Eye & Laser Center  Pacific Eye Associates  Pacific Eye Specialists CPMC  Pacific Eye Associates  Pacific Eye Associates  Pacific Eye Specialists CPMC  Pacific Eye Specialists CPMC  Suzanne G Li MD Alameda, 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 Alameda
Nearby Alameda Hospitals *Alameda Hospital Alameda County Medical Center Highland Campus 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 San Leandro Hospital Alta Bates Summit Medical Center Herrick Campus Kindred Hospital San Francisco Bay Area John George Psychiatric Pavilion Alameda County Medical Center Fairmont Campus San Francisco General Hospital Chinese Hospital Saint Francis Memorial Hospital St Luke's Hospital Eden Medical Center California Pacific Medical Center Pacific Campus California Pacific Medical Center Davies Campus UCSF Medical Center at Mount Zion Kaiser Permanente San Francisco Medical Center 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 Hayward Medical Center St Rose Hospital Kaiser Permanente South San Francisco Medical Center Kaiser Permanente Walnut Creek Medical Center Seton Medical Center Doctor's Medical Center San Pablo San Francisco VA Medical Center Mills Hospital John Muir Medical Center Walnut Creek Campus Mills-Peninsula Health Services San Ramon Regional Medical Center San Mateo Medical Center VA Northern CA Healthcare System at Martinez Contra Costa Regional Medical Center John Muir Behavioral Health Center John Muir Medical Center Concord Campus Kaiser Permanente Redwood City Medical Center Sequoia Hospital ValleyCare Health System Pleasanton Marin General Hospital Washington Hospital Kentfield Rehabilitation & Specialty Hospital Fremont Hospital Menlo Park Surgical Hospital Seton Medical Center Coastside Lucile Packard Children's Hospital Stanford Hospital & Clinics Kaiser Permanente San Rafael Medical Center St Helena Hospital Center for Behavioral Health Kaiser Permanente Vallejo Medical Center Sutter Solano Medical Center VA Palo Alto Health Care System Valley Memorial Hospital Sutter Delta Medical Center Livermore Division of the VA Palo Alto Healthcare System Novato Community Hospital El Camino Hospital Kaiser Permanente Santa Clara Medical Center Telecare Solano Psychiatric Health Facility O'Connor Hospital 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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