Electroretinography Center - Washington, DC
Washington 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 Washington * RCN International  Eye Doctors of Washington  Eye Doctors of Washington  Jonathan C Javitt MD  Howard University Physicians Pediatrics  Howard University Physicians Ophthalmology  David H Pendergrast MD  TLC Laser Eye Centers  TLC Laser Eye Centers  Howard J Jacobson MD  Retina Consultants PC  Retina Consultants PC  Retina Consultants PC  Retina Consultants PC  Retina Consultants PC  Maxwell A Helfgott MD PC  Maxwell A Helfgott MD PC  Maxwell A Helfgott MD PC  Maxwell A Helfgott MD PC  Reginald D Barnes Jr. MD  MFA Ophthalmology  Kaiser West End Medical Center Ophthalmology  MFA Ophthalmology  MFA Ophthalmology  MFA Ophthalmology  MFA Ophthalmology  MFA Ophthalmology  MFA Ophthalmology  MFA Ophthalmology  Kaiser West End Medical Center Ophthalmology  MFA Ophthalmology  MFA Ophthalmology  Childrens National Medical Center Ophthalmology  Childrens National Medical Center Ophthalmology  Childrens National Medical Center Ophthalmology  Childrens National Medical Center Ophthalmology  Eye Physicians & Surgeons at Washington Circle  Shirley P Middleton MD  Frank A Spellman MD  Samuel S Stopak MD  Ronald L Anderson MD  Martin P Kolsky MD  Martin P Kolsky MD  Samuel Stoleru MD  Metropolitan Eye Care Associates  Drs Scott & Gaskins  Georgetown University Hospital Ophthalmology  Georgetown University Hospital Ophthalmology  Georgetown University Hospital Ophthalmology  Washington Eye Specialists  Washington Eye Specialists  Metropolitan Eye Associates  Metropolitan Eye Associates  Henry S Wicker MD  John R Millwater MD  Nancy E Thomas MD  Eye Associates of Washington  Eye Associates of Washington  Eye Associates of Washington Washington, District of ColumbiaWashington, D.C. formally the District of Columbia and commonly referred to as Washington, the District, or simply D.C., is the capital of the United States, founded on July 16, 1790. The City of Washington was originally a separate municipality within the Territory of Columbia until an act of Congress in 1871 effectively merged the City and the Territory into a single entity called the District of Columbia. It is for this reason that the city, while legally named the District of Columbia, is known as Washington, D.C. Upcoming Local Events2012-06-02
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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 Washington
Nearby Washington Hospitals *Howard University Hospital The George Washington University Hospital The Specialty Hospital of Washington Children's National Medical Center National Rehabilitation Hospital Washington DC VA Medical Center Washington Hospital Center Georgetown University Hospital Providence Hospital The HSC Pediatric Center Saint Elizabeth's Hospital Psychiatric Institute of Washington Walter Reed Army Medical Center The Specialty Hospital of Washington-Hadley Sibley Memorial Hospital United Medical Center Gladys Spellman Specialty Hospital Virginia Hospital Center Washington Adventist Hospital Prince George's Hospital Center Inova Alexandria Hospital Dominion Hospital Holy Cross Hospital National Institutes of Health Suburban Hospital Doctors Community Hospital Inova Fairfax Hospital Inova Fairfax Hospital for Children Inova Mount Vernon Hospital Northern Virginia Mental Health Institute Fort Washington Hospital Southern Maryland Hospital Center Laurel Regional Hospital Shady Grove Adventist Hospital Adventist Rehabilitation Hospital of Maryland Potomac Ridge Behavioral Health Adventist HealthCare Montgomery General Hospital Reston Hospital Center Inova Fair Oaks Hospital Howard County General Hospital Potomac Hospital Civista Medical Center Prince William Hospital Anne Arundel Medical Center Baltimore Washington Medical Center Inova Loudoun Hospital Center Sheppard Pratt at Ellicott City Spring Grove Hospital Center Saint Agnes Hospital Harbor Hospital Center North Spring Behavioral Healthcare Calvert Memorial Hospital Kernan Hospital Bon Secours Baltimore Health System Graydon Manor Behavioral Health Northwest Hospital Baltimore VA Medical Center Springfield Hospital Center University of Maryland Medical Center  University Specialty Hospital  Mercy Medical Center  Maryland General 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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