Electroretinography Center - Durham, NC
Durham 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 Durham * Duke University Eye Ctr  Duke Eye Center  Duke Eye Center  Duke Eye Center  Duke Eye Center  Duke Eye Center  David L Epstein MD  Duke University Medical Center Ophthalmology  Duke Eye Center  Duke University Medical Center  Duke Eye Center  Duke Eye Center  Duke Eye Center  Duke Eye Center  Duke Eye Center  Duke Eye Center  Duke Eye Center  Duke Eye Center  J Stuart McCracken MD  R Rand Allingham MD  Duke Eye Center  Duke Eye Center Ophthalmology  Duke Eye Center Ophthalmology  Duke Eye Center  North Carolina Eye Ear Nose & Throat PA  North Carolina Eye Ear Nose & Throat PA  North Carolina Eye Ear Nose & Throat PA  North Carolina Eye Ear Nose & Throat PA  North Carolina Eye Ear Nose & Throat PA  North Carolina Eye Ear Nose & Throat PA  North Carolina Eye Ear Nose & Throat PA  North Carolina Eye Ear Nose & Throat PA  North Carolina Eye Ear Nose & Throat PA  Duke Medical Eye Center Pediatric Ophthalmology  Duke Medical Eye Center Pediatric Ophthalmology  Duke Medical Eye Center Pediatric Ophthalmology  Duke Medical Eye Center Pediatric Ophthalmology  Duke Medical Eye Center Pediatric Ophthalmology  Duke Medical Eye Center Pediatric Ophthalmology  Eye Institute of North Carolina PC  Park Ophthalmology  Park Ophthalmology  AFOPF  Kelly Eye Center  Chapel Hill Ophthalmology  Chapel Hill Ophthalmology  Chapel Hill Ophthalmology  Alamance Eye Center PA  Carolina Ophthalmology Associates PA  Carolina Ophthalmology Associates PA  UNC Department of Ophthalmology  UNC Department of Ophthalmology  UNC Department of Ophthalmology  UNC Department of Ophthalmology  Kitner Eye Center  UNC Department of Ophthalmology  UNC Department of Ophthalmology  UNC Department of Ophthalmology  Laser Eye Center of Carolina  All About Aesthetics PC  Raleigh Ophthalmology  Raleigh Ophthalmology  Raleigh Ophthalmology  Southern Eye Associates  Southern Eye Associates  Raleigh Ophthalmology  Raleigh Ophthalmology  Raleigh Ophthalmology  Raleigh Ophthalmology  Raleigh Ophthalmology  Wake Ophthalmology  Wake Ophthalmology  Wake Ophthalmology  Retina Associates PC  Rexwoods Eye Center  Triangle Eye Physicians PA  Triangle Eye Physicians PA  Doctors Vision Center  Cary Carolina Retna  Western Wake Eye Center PA  Western Wake Eye Center PA  Vista Care Optometry  Duke Eye Center of Cary  H Royster Chamblee Jr. MD  Walton K Joyner MD  Lowry & McCormick Ophthalmology  Lowry & McCormick Ophthalmology  Taylor Vitreoretinal Center  Carolina Cataract & Laser Center  Raleigh Eye Center PA  Raleigh Eye Center PA  Raleigh Eye Center PA  Capital Eye Center  Raleigh Eye Center PA  Raleigh Eye Center PA  Raleigh Eye Center PA  Edwin R Swann MD  Orellana Retina Associates  Fuquay Ophthalmology & Glaucoma  New Centre Ophthamology Dept Durham, North CarolinaDurham is a city in the U.S. state of North Carolina. It is the county seat of Durham County and also extends into Wake county. It is the home of Duke University and North Carolina Central University, and is also one of the vertices of the Research Triangle area (home of the Research Triangle Park). Upcoming Local Events2012-06-16
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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 Durham
Nearby Durham Hospitals *Duke University Medical Center Durham VA Medical Center Durham Regional Hospital Select Specialty Hospital Durham North Carolina Specialty Hospital UNC Health Care John Umstead Hospital Rex Healthcare WakeMed Cary Hospital Duke Raleigh Hospital WakeMed Raleigh Campus Holly Hill Hospital Granville Medical Center Person Memorial Hospital Maria Parham Medical Center Alamance Regional Medical Center Franklin Regional 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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