Electroretinography Center - South Gate, CA
South Gate 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 Gate * Kenneth Cohn MD  Shammas Medical Eye Center  Delapena Eye Clinic  Delapena Eye Clinic  Casimiro Gonzalez MD  LAC / Martin Luther King Jr General Hospital  White Memorial Medical Center  Downey Eye Center  Joseph K W Hsu MD PC  Theodore B Okie MD  Brian M Brown MD  Cheryl Powell MD  Jesse M DeLeon & Liberation DeLeon MDs  Carl J Gordon MD  R Philip Doss MD  Paul T Urrea MD  De La Pena Eye Clinic  Tsuyoshi Yamashita MD  Plaza Eye & Surgery Center  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  Century Eye Care & Facial Plastic Surgery Ctr  Carson,McBeath & Boswell, Inc.  Lakewood Eye Physicians  Lakewood Eye Physicians  Lakewood Eye Physicians  Lakewood Eye Physicians  Charles J Abbott MD  Retina Vitreous Associates  Hill Eye Center  Retina Vitreous Associates  Eyesthetica  Retina Vitreous Associates  Quon Medical Center  Retina Vitreous Associates  Harold E Reaves MD  Jeffrey Sage DO  Laser Eye Center  Ocular Surgery Medical Associates  Ocular Surgery Medical Associates  Agape Eye Associates  Carson,McBeath & Boswell, Inc.  Chang Eye Clinic  Calvin T Eng MD  Carson,McBeath & Boswell, Inc.  Carson,McBeath & Boswell, Inc.  Carson,McBeath & Boswell, Inc.  Mitchell Latter MD Inc  Family Eye Medical Group  Family Eye Medical Group  Montebello Eye Center  Family Eye Medical Group  Family Eye Medical Group  Montebello Eye Center  Family Eye Medical Group  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  Michael Brenner MD  Sunmin Park MD  Lo Medical Group  Tran Loan MD Corporation  CA Center-Refractive Surgery  Kevin T Wong MD  Kevin T Wong MD  Drs Cho & Han  James Peace MD  Timothy Scott MD  Leroy Vaughn MD  Ted Wei MD  Grace Liu MD  Sherman A Robins MD  Century City Eye Medical Group  Stanley S. Kim MD  Dwight H Smith MD  Alice Song MD Corp  Ophthalmology Corporation  William P Chen MD FACS  Veronique Jotterand MD  Joseph Y Lee MD  Joseph Y Lee MD  Kenneth Sall MD  Serrano Eye Center  Serrano Eye Center  Robert L Charet MD  Long Beach Eye Care Associates South Gate, 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 South Gate
Nearby South Gate Hospitals *St Francis Medical Center Community Hospital of Huntington Park Martin Luther King Jr MAC Service Center Rancho Los Amigos National Rehabilitation Center Downey Regional Medical Center Los Angeles Community Hospital East Los Angeles Doctors Hospital Kaiser Permanente Downey Medical Center Promise Hospital of East Los Angeles Suburban Medical Center Campus Promise Hospital of East Los Angeles Orthopaedic Medical Center California Hospital Medical Center White Memorial Medical Center Coast Plaza Doctors Hospital Memorial Hospital of Gardena LAC + USC Medical Center LAC + USC Medical Center Women's & Children's Hospital Vista Hospital of South Bay Bellflower Medical Center Beverly Hospital USC Norris Comprehensive Cancer Center Lakewood Regional Medical Center USC University Hospital Good Samaritan Hospital Monterey Park Hospital College Hospital Cerritos Pacific Alliance Medical Center Kaiser Mental Health Center Los Angeles Metropolitan Medical Center Centinela Freeman Regional Medical Center Centinela Campus St Vincent Medical Center Barlow Respiratory Hospital Metropolitan State Hospital Norwalk Community Hospital Los Angeles Metropolitan Medical Center Hawthorne Campus Garfield Medical Center Shriners Hospitals for Children Los Angeles Presbyterian Intercommunity Hospital Gateways Hospital & Mental Health Center Temple Community Hospital City of Angels Medical Center Ingleside Campus Alhambra Hospital Medical Center LAC Harbor UCLA Medical Center Kindred Hospital Los Angeles Long Beach Memorial Medical Center Miller Children's Hospital Pacific Hospital of Long Beach VA Greater Los Angeles HealthCare System Hollywood Presbyterian Medical Center BHC Alhambra Hospital Childrens Hospital Los Angeles Kaiser Permanente Los Angeles Medical Center Tri-City Regional Medical Center Kaiser Permanente West Los Angeles Medical Center Greater El Monte Community Hospital Kindred Hospital La Mirada Olympia Medical Center Miracle Mile Medical Center Whittier Hospital Medical Center San Gabriel Valley Medical Center Hollywood Community Hospital Brotman Medical Center Providence Little Company of Mary Medical Center Torrance Community Hospital of Long Beach La Palma Intercommunity Hospital St Mary Medical Center Glendale Memorial Hospital & Health Center Kaiser Permanente South Bay Medical Center Torrance Memorial Medical Center Huntington Hospital Cedars-Sinai Medical Center Del Amo Hospital Los Alamitos Medical Center Glendale Adventist Medical Center VA Long Beach Healthcare System 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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