Electroretinography Center - Bell Gardens, CA
Bell Gardens 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 Bell Gardens * Casimiro Gonzalez MD  Theodore B Okie MD  Downey Eye Center  Joseph K W Hsu MD PC  Brian M Brown MD  De La Pena Eye Clinic  Kenneth Cohn MD  White Memorial Medical Center  Chang Eye Clinic  Shammas Medical Eye Center  Delapena Eye Clinic  Montebello Eye Center  Delapena Eye Clinic  Montebello Eye Center  Jesse M DeLeon & Liberation DeLeon MDs  Calvin T Eng MD  Paul T Urrea MD  Tran Loan MD Corporation  Charles J Abbott MD  Carl J Gordon MD  Lo Medical Group  Agape Eye Associates  LAC / Martin Luther King Jr General Hospital  Mitchell Latter MD Inc  Kevin T Wong MD  Kevin T Wong MD  Ted Wei MD  R Philip Doss MD  Carson,McBeath & Boswell, Inc.  Doheny Eye Institute Los Angeles  Lakewood Eye Physicians  Doheny Eye Institute Los Angeles  Lakewood Eye Physicians  Lakewood Eye Physicians  Doheny Eye Institute Los Angeles  Doheny Eye Institute Los Angeles  Children's Hospital Los Angeles Ophthalmology  Lakewood Eye Physicians  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  Roger Chan MD  Grace Liu MD  Glen Jarus MD  Nicholas Kokoris MD & Associates  Nicholas Kokoris MD & Associates  Frederick Raymond MD  Kenneth Sall MD  Dai Le Tran MD  Tsuyoshi Yamashita MD  Cerritos Eye Medical Center  Dik Cheung MD  Hill Eye Center  Quon Medical Center  Cheryl Powell MD  Plaza Eye & Surgery Center  Carson,McBeath & Boswell, Inc.  Carson,McBeath & Boswell, Inc.  Carson,McBeath & Boswell, Inc.  Carson,McBeath & Boswell, Inc.  William Ko MD  Family Eye Medical Group  Family Eye Medical Group  Family Eye Medical Group  San Gabriel Eye Associates  San Gabriel Eye Associates  Family Eye Medical Group  Family Eye Medical Group  Retina Vitreous Associates  Retina Vitreous Associates  Eyesthetica  Retina Vitreous Associates  Retina Vitreous Associates  Harold E Reaves MD  Jeffrey Sage DO  Laser Eye Center  Ocular Surgery Medical Associates  Michael Brenner MD  OIC Eye Group  Ocular Surgery Medical Associates  William N May MD  El Monte Eye Clinic  Walter Roberts & Keith Kenyon MD  Steven Khwarg MD  Levine Medical Corporation  Walter Roberts & Keith Kenyon MD  Walter Roberts & Keith Kenyon MD  Focal Point Eye Center  Eye Physicians of Long Beach  Randolph J Falk MD  Eye Physicians of Long Beach  Leif M Hertzog MD  Lars H Hertzog Jr. MD  John S Marshburn MD  David Marshburn DO Bell Gardens, 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 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 Bell Gardens
Nearby Bell Gardens Hospitals *Downey Regional Medical Center Rancho Los Amigos National Rehabilitation Center Kaiser Permanente Downey Medical Center St Francis Medical Center Los Angeles Community Hospital Beverly Hospital East Los Angeles Doctors Hospital Community Hospital of Huntington Park Coast Plaza Doctors Hospital Monterey Park Hospital Metropolitan State Hospital Presbyterian Intercommunity Hospital Promise Hospital of East Los Angeles Suburban Medical Center Campus Martin Luther King Jr MAC Service Center Promise Hospital of East Los Angeles Norwalk Community Hospital College Hospital Cerritos Bellflower Medical Center LAC + USC Medical Center LAC + USC Medical Center Women's & Children's Hospital White Memorial Medical Center Garfield Medical Center USC Norris Comprehensive Cancer Center USC University Hospital City of Angels Medical Center Ingleside Campus Lakewood Regional Medical Center California Hospital Medical Center BHC Alhambra Hospital Orthopaedic Medical Center Greater El Monte Community Hospital Alhambra Hospital Medical Center Pacific Alliance Medical Center Whittier Hospital Medical Center Kaiser Mental Health Center Kindred Hospital La Mirada Good Samaritan Hospital Barlow Respiratory Hospital San Gabriel Valley Medical Center St Vincent Medical Center Memorial Hospital of Gardena Vista Hospital of South Bay Gateways Hospital & Mental Health Center Tri-City Regional Medical Center Los Angeles Metropolitan Medical Center Shriners Hospitals for Children Los Angeles La Palma Intercommunity Hospital Temple Community Hospital Long Beach Memorial Medical Center Miller Children's Hospital Centinela Freeman Regional Medical Center Centinela Campus Pacific Hospital of Long Beach Kaiser Permanente Medical Center Baldwin Park Huntington Hospital Hollywood Presbyterian Medical Center Childrens Hospital Los Angeles Kaiser Permanente Los Angeles Medical Center Los Angeles Metropolitan Medical Center Hawthorne Campus Vista Specialty Hospital of San Gabriel Valley Community Hospital of Long Beach Los Alamitos Medical Center Aurora Las Encinas Hospital LAC Harbor UCLA Medical Center VA Greater Los Angeles HealthCare System Glendale Memorial Hospital & Health Center Methodist Hospital Kindred Hospital Los Angeles St Mary Medical Center Anaheim General Hospital Glendale Adventist Medical Center West Anaheim Medical Center Citrus Valley Medical Center Queen of the Valley Campus Hollywood Community Hospital VA Long Beach Healthcare System Olympia Medical Center Doctor's Hospital West Covina 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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