Electroretinography Center - Rancho Palos Verdes, CA
Rancho Palos Verdes 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 Rancho Palos Verdes * Dinsmore Eye Center  Sanford Davidson MD  TLC Torrance Natural Sight Laser Vision Center  Carson,McBeath & Boswell, Inc.  Carson,McBeath & Boswell, Inc.  Ophthalmology Corporation  Alice Song MD Corp  Patrick C Yeh MD  Steven Khwarg MD  Alfred Marrone MD  Sunmin Park MD  Retina Vitreous Associates  Dan & Douglas Sakamoto MDs  Dan & Douglas Sakamoto MDs  Wolstan Eye Associates  Lydia Matkovich MD  Wolstan Eye Associates  Wolstan Eye Associates  Peninsula Eye Care Medical Assoc  Peninsula Eye Care Medical Assoc  Raj Dugel MD  John Maher MD  Peter Mastan MD  Eye Medical Group  Sharper Vision Centers  Children's Eye Care Medical Group  South Bay Eye Institute  James W Bryan MD  South Bay Eye Institute  San Pedro Eye Care  HealthCare Partners Medical Group Torrance Specialty  Kaiser Permanente Harbor City Mixed Specialties  Kaiser Permanente Harbor City Mixed Specialties  Kaiser Permanente Harbor City Mixed Specialties  Dinsmore Eye Center  South Bay Laser Eye Center  Robert L Charet MD  Century Eye Care & Facial Plastic Surgery Ctr  Hector Sulit MD  W Benton Boone MD  Semel Vision Care  Semel Vision Care  Eye Treatment Center  Eye Treatment Center  Eye Treatment Center  Eye Treatment Center  Long Beach Eye Care Associates  Long Beach Eye Care Associates  Long Beach Eye Care Associates  Long Beach Eye Care Associates  Dan B Tran MD  Long Beach Eye Center  Dwight H Smith MD  Long Beach Eye Center  William P Chen MD FACS  Veronique Jotterand MD  Michael Brenner MD  Timothy Scott MD  Leroy Vaughn MD  Carson,McBeath & Boswell, Inc.  Carson,McBeath & Boswell, Inc.  Family Eye Medical Group  Family Eye Medical Group  Family Eye Medical Group  Carson,McBeath & Boswell, Inc.  James Peace MD  Family Eye Medical Group  Family Eye Medical Group  Frederick Williams MD  Eye Institute of Marina Del Rey  Eye Institute of Marina Del Rey  LAC / Martin Luther King Jr General Hospital  Harriman Jones Medical Group  Lars H Hertzog Jr. MD  Leif M Hertzog MD  Michael E Lieppman MD  Century City Eye Medical Group  Sherman A Robins MD  Shammas Medical Eye Center  Lakewood Eye Physicians  Lakewood Eye Physicians  Lakewood Eye Physicians  Lakewood Eye Physicians  Eye Care Center  Besser and Krivoy MDs  Besser and Krivoy MDs  Jesse M DeLeon & Liberation DeLeon MDs  Kenneth Cohn MD  Katherine Tanaka MD Inc  Mary A Cote MD  Cheryl Powell MD  Delapena Eye Clinic  Delapena Eye Clinic  Santa Monica Eye Medical Group  Santa Monica Eye Medical Group  Thomas Hanscom MD  Jay Patel MD  Assil Eye Institute  Retinal Consultants Of Southern California  J Lawrence Garwood MD Rancho Palos Verdes, CaliforniaUpcoming Local Events2012-05-28
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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 Rancho Palos Verdes
Nearby Rancho Palos Verdes Hospitals *Del Amo Hospital Providence Little Company of Mary Medical Center San Pedro Torrance Memorial Medical Center Providence Little Company of Mary Medical Center Torrance Kaiser Permanente South Bay Medical Center LAC Harbor UCLA Medical Center Vista Hospital of South Bay Los Angeles Metropolitan Medical Center Hawthorne Campus Memorial Hospital of Gardena St Mary Medical Center Pacific Hospital of Long Beach Long Beach Memorial Medical Center Miller Children's Hospital Centinela Freeman Regional Medical Center Centinela Campus Community Hospital of Long Beach Martin Luther King Jr MAC Service Center VA Long Beach Healthcare System Marina Del Rey Hospital Lakewood Regional Medical Center Kindred Hospital Los Angeles Promise Hospital of East Los Angeles Suburban Medical Center Campus St Francis Medical Center Bellflower Medical Center Rancho Los Amigos National Rehabilitation Center Brotman Medical Center Tri-City Regional Medical Center College Hospital Cerritos Community Hospital of Huntington Park Kaiser Permanente Downey Medical Center Los Alamitos Medical Center Santa Monica UCLA Medical Center Saint John's Health Center Kaiser Permanente West Los Angeles Medical Center Downey Regional Medical Center Los Angeles Metropolitan Medical Center Coast Plaza Doctors Hospital Orthopaedic Medical Center California Hospital Medical Center Miracle Mile Medical Center Olympia Medical Center La Palma Intercommunity Hospital VA Greater Los Angeles HealthCare System Ronald Reagan UCLA Medical Center UCLA Neuropsychiatric Hospital Los Angeles Community Hospital Norwalk Community Hospital Good Samaritan Hospital Cedars-Sinai Medical Center East Los Angeles Doctors Hospital Metropolitan State Hospital Promise Hospital of East Los Angeles St Vincent Medical Center Anaheim General Hospital Shriners Hospitals for Children Los Angeles Kindred Hospital Westminster White Memorial Medical Center Temple Community Hospital Huntington Beach Hospital Kaiser Mental Health Center Pacific Alliance Medical Center West Anaheim Medical Center LAC + USC Medical Center LAC + USC Medical Center Women's & Children's Hospital Barlow Respiratory Hospital Hollywood Community Hospital USC Norris Comprehensive Cancer Center USC University Hospital Gateways Hospital & Mental Health Center Hollywood Presbyterian Medical Center Childrens Hospital Los Angeles Kaiser Permanente Los Angeles Medical Center Kindred Hospital La Mirada Beverly Hospital Presbyterian Intercommunity Hospital Orange Coast Memorial Medical Center 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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