Electroretinography Center - South San Francisco, CA
South San Francisco 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 South San Francisco * Kaiser Medical  Kaiser Medical  Kaiser Medical  James H Abrams MD  Pacific Eye Specialists CPMC  Pacific Eye Specialists CPMC  Pacific Eye Specialists CPMC  St Francis Ophthalmology Group  St Francis Ophthalmology Group  St Francis Ophthalmology Group  Bruce Kirschner MD  Peninsula Ophthalmology Group  Kim L Cooper DO  Robert R Elliston MD  Robert R Elliston MD  Peninsula Ophthalmology Group  Premier Eyecare  Premier Eyecare  Premier Eyecare  Earl L Stern MD  Eye Care Associates of San Francisco  Eye Care Associates of San Francisco  Eye Care Associates of San Francisco  Lillie A Mosaddegh MD  Mary Ann Banez MD  Proctor Medical Group  Devron H Char MD  Proctor Medical Group  Proctor Medical Group  San Francisco Eye Institute  Proctor Medical Group  UCSF Beckman Vision Center  UCSF Beckman Vision Center  UCSF Beckman Vision Center  UCSF Beckman Vision Center  UCSF Beckman Vision Center  UCSF Beckman Vision Center  UCSF Beckman Vision Center  UCSF Beckman Vision Center  UCSF Beckman Vision Center  UCSF Beckman Vision Center  UCSF Beckman Vision Center  UCSF Beckman Vision Center  UCSF Beckman Vision Center  UCSF Beckman Vision Center  UCSF Beckman Vision Center  UCSF Beckman Vision Center  UCSF Beckman Vision Center  UCSF Beckman Vision Center  L Scott Feiler MD  Glaucoma Specialists  West Coast Retina Medical Group Inc  West Coast Retina Medical Group Inc  West Coast Retina Medical Group Inc  West Coast Retina Medical Group Inc  N CA Retina Vitreous Associates Inc  N CA Retina Vitreous Associates Inc  Peninsula Eye Physicians Group  N CA Retina Vitreous Associates Inc  Peninsula Eye Physicians Group  Peninsula Eye Physicians Group  Peninsula Eye Physicians Group  N CA Retina Vitreous Associates Inc  Peninsula Eye Physicians Group  N CA Retina Vitreous Associates Inc  N CA Retina Vitreous Associates Inc  Glaucoma Specialists  Pacific Vision Institute  Pacific Vision Institute  Dean R Hirabayashi MD  Gary L Aguilar MD  Melvyn D Bert MD FACS  Daniel F Goodman Medical Group Inc  Michael Turan MD  Ze Woong Yang MD  LaserVue Eye Center  Optima Ophthalmic Medical Associates 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  Pacific Eye Specialists CPMC  Glaucoma Center of San Francisco  M David Thier MD  Pacific Eye Associates  Pacific Eye Associates  Pacific Eye Associates  Day & Good MDs  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 South San Francisco, 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 South San Francisco
Nearby South San Francisco Hospitals *Kaiser Permanente South San Francisco Medical Center Seton Medical Center Mills-Peninsula Health Services St Luke's Hospital Laguna Honda Hospital & Rehabilitation Center San Francisco General Hospital UCSF Medical Center at Parnassus California Pacific Medical Center Davies Campus Mills Hospital St Mary's Medical Center Kaiser Permanente San Francisco Medical Center UCSF Medical Center at Mount Zion Saint Francis Memorial Hospital California Pacific Medical Center California Campus California Pacific Medical Center East Campus California Pacific Medical Center Pacific Campus Chinese Hospital San Francisco VA Medical Center Seton Medical Center Coastside San Mateo Medical Center 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 Sequoia Hospital San Leandro Hospital Kaiser Permanente Redwood City Medical Center Kindred Hospital San Francisco Bay Area Alta Bates Summit Medical Center Alta Bates Campus Alameda County Medical Center Fairmont Campus Alta Bates Summit Medical Center Herrick Campus John George Psychiatric Pavilion Kaiser Permanente Hayward Medical Center St Rose Hospital Eden Medical Center Menlo Park Surgical Hospital Lucile Packard Children's Hospital Stanford Hospital & Clinics Doctor's Medical Center San Pablo Marin General Hospital Kentfield Rehabilitation & Specialty Hospital VA Palo Alto Health Care System Washington Hospital Fremont Hospital Kaiser Permanente San Rafael Medical Center Kaiser Permanente Walnut Creek Medical Center San Ramon Regional Medical Center El Camino Hospital John Muir Medical Center Walnut Creek Campus ValleyCare Health System Pleasanton VA Northern CA Healthcare System at Martinez Contra Costa Regional Medical Center John Muir Behavioral Health Center John Muir Medical Center Concord Campus Novato Community Hospital Kaiser Permanente Santa Clara Medical Center St Helena Hospital Center for Behavioral Health Kaiser Permanente Vallejo Medical Center Sutter Solano Medical Center Valley Memorial Hospital 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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