Electroretinography Center - Lynwood, CA
Lynwood 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 Lynwood * Shammas Medical Eye Center  Kenneth Cohn MD  LAC / Martin Luther King Jr General Hospital  Casimiro Gonzalez MD  Delapena Eye Clinic  Delapena Eye Clinic  Jesse M DeLeon & Liberation DeLeon MDs  Downey Eye Center  Joseph K W Hsu MD PC  Brian M Brown MD  Theodore B Okie MD  Carson,McBeath & Boswell, Inc.  Lakewood Eye Physicians  Lakewood Eye Physicians  Lakewood Eye Physicians  Lakewood Eye Physicians  Charles J Abbott MD  Carson,McBeath & Boswell, Inc.  Carson,McBeath & Boswell, Inc.  Carson,McBeath & Boswell, Inc.  Carson,McBeath & Boswell, Inc.  Family Eye Medical Group  Family Eye Medical Group  Family Eye Medical Group  Family Eye Medical Group  Family Eye Medical Group  White Memorial Medical Center  Michael Brenner MD  Mitchell Latter MD Inc  Century Eye Care & Facial Plastic Surgery Ctr  Cheryl Powell MD  De La Pena Eye Clinic  Carl J Gordon MD  Ophthalmology Corporation  Alice Song MD Corp  William P Chen MD FACS  Veronique Jotterand MD  Tran Loan MD Corporation  Long Beach Eye Care Associates  Long Beach Eye Care Associates  Long Beach Eye Care Associates  Long Beach Eye Care Associates  R Philip Doss MD  Long Beach Eye Center  Paul T Urrea MD  Long Beach Eye Center  Plaza Eye & Surgery Center  Leif M Hertzog MD  Lars H Hertzog Jr. MD  Kenneth Sall MD  Tsuyoshi Yamashita MD  Chang Eye Clinic  Harriman Jones Medical Group  Doheny Eye Institute Los Angeles  Doheny Eye Institute Los Angeles  Doheny Eye Institute Los Angeles  Doheny Eye Institute Los Angeles  Children's Hospital Los Angeles Ophthalmology  Stephen J Ryan MD  Doheny Eye Institute Los Angeles  Doheny Eye Institute Los Angeles  Ronald E Smith MD  Children's Hospital Los Angeles Ophthalmology  Doheny Eye Institute Los Angeles  Doheny Eye Institute Los Angeles  Doheny Eye Institute Los Angeles  Montebello Eye Center  Cerritos Eye Medical Center  Montebello Eye Center  Retina Vitreous Associates  Retina Vitreous Associates  Eyesthetica  Calvin T Eng MD  Retina Vitreous Associates  Retina Vitreous Associates  Harold E Reaves MD  Jeffrey Sage DO  Laser Eye Center  Ocular Surgery Medical Associates  Hill Eye Center  Eye Physicians of Long Beach  Eye Physicians of Long Beach  Quon Medical Center  Ocular Surgery Medical Associates  Agape Eye Associates  Dan B Tran MD  Eye Treatment Center  Eye Treatment Center  Eye Treatment Center  Eye Treatment Center  Michael E Lieppman MD  James Peace MD  Timothy Scott MD  Hector Sulit MD  Leroy Vaughn MD  Robert L Charet MD  Katherine Tanaka MD Inc  Walter Roberts & Keith Kenyon MD  Steven Khwarg MD  Levine Medical Corporation Lynwood, CaliforniaUpcoming Local Events2012-06-10
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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 Usher syndrome?Usher syndrome is the most common condition that affects both hearing and vision. A syndrome is a disease or disorder that has more than one feature or symptom. The major symptoms of Usher syndrome are hearing loss and an eye disorder called retinitis pigmentosa, or RP. RP causes night-blindness and a loss of peripheral vision (side vision) through the progressive degeneration of the retina. The retina is a light-sensitive tissue at the back of the eye and is crucial for vision. As RP progresses, the field of vision narrows - a condition known as "tunnel vision" - until only central vision (the ability to see straight ahead) remains. Many people with Usher syndrome also have severe balance problems. There are three clinical types of Usher syndrome:
In the United States, types 1 and 2 are the most common types. Together, they... Other Related Electroretinography ArticlesEmergency Contact for Lynwood
Nearby Lynwood Hospitals *St Francis Medical Center Martin Luther King Jr MAC Service Center Rancho Los Amigos National Rehabilitation Center Promise Hospital of East Los Angeles Suburban Medical Center Campus Downey Regional Medical Center Kaiser Permanente Downey Medical Center Community Hospital of Huntington Park Bellflower Medical Center Lakewood Regional Medical Center Coast Plaza Doctors Hospital Memorial Hospital of Gardena Vista Hospital of South Bay College Hospital Cerritos Los Angeles Community Hospital East Los Angeles Doctors Hospital Metropolitan State Hospital Norwalk Community Hospital Promise Hospital of East Los Angeles Orthopaedic Medical Center Beverly Hospital Long Beach Memorial Medical Center Miller Children's Hospital Pacific Hospital of Long Beach California Hospital Medical Center LAC Harbor UCLA Medical Center White Memorial Medical Center Centinela Freeman Regional Medical Center Centinela Campus Los Angeles Metropolitan Medical Center Hawthorne Campus LAC + USC Medical Center LAC + USC Medical Center Women's & Children's Hospital Presbyterian Intercommunity Hospital Monterey Park Hospital Tri-City Regional Medical Center USC Norris Comprehensive Cancer Center USC University Hospital Good Samaritan Hospital Pacific Alliance Medical Center Los Angeles Metropolitan Medical Center Kaiser Mental Health Center Community Hospital of Long Beach St Mary Medical Center St Vincent Medical Center Barlow Respiratory Hospital Garfield Medical Center Kindred Hospital La Mirada La Palma Intercommunity Hospital Shriners Hospitals for Children Los Angeles Kaiser Permanente South Bay Medical Center Providence Little Company of Mary Medical Center Torrance City of Angels Medical Center Ingleside Campus Kindred Hospital Los Angeles Gateways Hospital & Mental Health Center Temple Community Hospital Whittier Hospital Medical Center Los Alamitos Medical Center Torrance Memorial Medical Center VA Long Beach Healthcare System Alhambra Hospital Medical Center Del Amo Hospital BHC Alhambra Hospital VA Greater Los Angeles HealthCare System Greater El Monte Community Hospital Kaiser Permanente West Los Angeles Medical Center Hollywood Presbyterian Medical Center Childrens Hospital Los Angeles Olympia Medical Center Kaiser Permanente Los Angeles Medical Center Miracle Mile Medical Center Brotman Medical Center San Gabriel Valley Medical Center Anaheim General Hospital Hollywood Community Hospital West Anaheim Medical Center Glendale Memorial Hospital & Health Center Marina Del Rey 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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Usher Syndrome
- There are three types of Usher (Usher's) syndrome, the most common condition that affects both vision and hearing. The major symptoms of Usher syndrome include retinitis pigmentosa (night-blindness and a loss of peripheral vision), and hearing loss. Usher syndrome is a genetic condition. There is no cure for Usher syndrome.
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