Electroretinography Center - Greenville, SC
Greenville 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 Greenville * Piedmont Retina Associates  Harry E Trantham MD  Jervey Eye Group  Jervey Eye Group  Jervey Eye Group  Jervey Eye Group  Jervey Eye Group  Jervey Eye Group  Southern Eye Associates & Optical Center  Southern Eye Associates & Optical Center  Southern Eye Associates & Optical Center  Southern Eye Associates & Optical Center  Southern Eye Associates & Optical Center  The Center For Advanced Eye Care  Jervey Eye Group  Jervey Eye Group  Jervey Eye Group  Jervey Eye Group  Montgomery & Riddle Eye Care PA  Jervey Eye Group  Greenville Childrens Hospital Ophthalmology  Donelson Eye Associates  Carolina Cornea Associates  Advanced Eyecare of the Upstate PA  Greenville Ophthalmology  Greenville Ophthalmology  Greenville Ophthalmology  Carolinas Eye Care PA  Carolinas Eye Care PA  Medicus  Medicus  Medicus  Anderson Opthalmology  Anderson Opthalmology  Mary M Varn MD LLC  Retina Consultants of Carolina  Retina Consultants of Carolina  Retina Consultants of Carolina  Retina Consultants of Carolina  Piedmont Eye Associates  Piedmont Eye Associates  Piedmont Eye Associates  East Side Eye Center  Palmetto Eye & Laser Center LLC  Palmetto Eye & Laser Center LLC  Palmetto Eye & Laser Center LLC  Palmetto Eye & Laser Center LLC  Palmetto Eye & Laser Center LLC  James P Weeks MD  Oconee Ophthalmology  Montgomery & Riddle Eye Care PA  Greenwood Eye Clinic  Greenwood Eye Clinic  Greenwood Eye Clinic  Greenwood Eye Clinic  Eye Associates of Chester  Charlotte Eye Ear Nose & Throat Associates PA  Rock Hill Eye Center  Rock Hill Eye Center  Rock Hill Eye Center  Rock Hill Eye Center  Mecklenburg Eye Associates  Retina Institute of the Carolinas  Retina Institute of the Carolinas  Mecklenburg Eye Associates  Retina Institute of the Carolinas  Fischbach Family Medicine & Ophthalmology  Southeast Retina Center PC  Aiken Internal Medicine Associates PA  Aiken Ophthalmology  Aiken Ophthalmology  Enoch Tsai MD  Carolina Retina Center PA  Palmetto Ophthalmology Associates PA  Palmetto Ophthalmology Associates PA  S Clay Miller MD  Palmetto Ophthalmology Associates PA  Center For Sight PA Greenville, South CarolinaUpcoming Local Events2012-06-03
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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 Greenville
Nearby Greenville Hospitals *Bon Secours St Francis Health System Downtown Regency Hospital of Greenville GHS Greenville Memorial Medical Campus Shriners Hospital For Children W J Barge Memorial Hospital GHS Patewood Medical Campus Bon Secours St Francis Health System Eastside SpringBrook Behavioral Health System GHS North Greenville Hospital The Carolina Center for Behavioral Health Greer Memorial Hospital Palmetto Health Baptist Easley GHS Hillcrest Hospital Cannon Memorial Hospital AnMed Health Rehabilitation Hospital Patrick B Harris Psychiatric Hospital AnMed Health System Spartanburg Regional Medical Center Spartanburg Hospital for Restorative Care St Luke's Hospital Mary Black Memorial Hospital Pardee Hospital Transylvania Community Hospital Oconee Memorial 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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