Electroretinography Center - Sandy Springs, GA
Sandy Springs 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 Sandy Springs * Wolfson Eye Institute  Wolfson Eye Institute  Woolfson Eye Institute  Eye Physicians & Surgeons PC  Gary A Beldick MD  Eye Physicians & Surgeons PC  Edwin H Donnelly MD  Eye Physicians & Surgeons PC  Eye Physicians & Surgeons PC  Terry W Taylor MD  Eye Physicians & Surgeons PC  Eye Physicians & Surgeons PC  Thomas Eye Group PC  Thomas Eye Group PC  Thomas Eye Group PC  Eye Consultants of Atlanta  Thomas Eye Group PC  Eye Consultants of Atlanta  Thomas Eye Group PC  Thomas Eye Group PC  Thomas Eye Group PC  Pediatric Eye Care  Pediatric Eye Care  Thomas Eye Group PC  Thomas Eye Group PC  Thomas Eye Group PC  Eye Consultants of Atlanta  Pediatric Eye Care  Thomas Eye Group PC  Georgia Eye Partners  Georgia Eye Partners  Georgia Retina PC  Georgia Retina PC  Georgia Retina PC  Georgia Retina PC  Atlanta Oculus Cosmetic Surgeons  Atlanta Oculus Cosmetic Surgeons  The Eye Services  The Eye Services  Julie Ann Galbreath-Wolf OD  Atlanta Oculus Cosmetic Surgeons  West Paces Omni Eye Services  Atlanta Ophthalmology Associates PC  Atlanta Ophthalmology Associates PC  Atlanta Ophthalmology Associates PC  Marietta Eye Clinic PA  Marietta Eye Clinic PA  Georgia Eye Associates  Georgia Eye Associates  Georgia Eye Associates  Georgia Eye Associates  John Davidson MD  West Paces Omni Eye Services  Paces Plastic Surgery & Recovery Ctr  Eye Consultants of Atlanta  Windy Hill Ophthalmology and Optical  Marietta Eye Clinic PA  Currell V Berry MD  Eye Consultants of Atlanta  Eye Consultants of Atlanta  Eye Consultants of Atlanta  Eye Consultants of Atlanta  Eye Consultants of Atlanta  Eye Consultants of Atlanta  Eye Consultants of Atlanta  Eye Consultants of Atlanta  Eye Consultants of Atlanta  Eye Consultants of Atlanta  Harry C Tindall MD  Eye Consultants of Atlanta  Atlanta Retina PC  Robert L Hendley MD  Mark J Safra MD  Emory Eye Center  Emory Eye Center  Emory Eye Center  Emory Eye Center  Emory Eye Center  Emory Eye Center  Emory Eye Center  Emory Eye Center  Emory Eye Center  Emory Eye Center  Emory Eye Center  Emory Eye Center  Emory Eye Center  Emory Eye Center  Emory Eye Center  Emory Eye Center  Atlanta Eye Consultants  Atlanta Eye Consultants  North Fulton Eye Center  North Fulton Eye Center  North Fulton Eye Center  Thomas Eye Group PC  Thomas Eye Group PC  James H Dew Jr. MD  Paul J Glass MD  Emory Eye Center  Georgia Eye Partners Sandy Springs, GeorgiaUpcoming 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 Sandy Springs
Nearby Sandy Springs Hospitals *Children's Healthcare at Scottish Rite Northside Hospital Saint Joseph's Hospital of Atlanta Peachford Behavioral Health System of Atlanta Wellstar Windy Hill Hospital Piedmont Hospital Shepherd Center Wesley Woods Geriatric Hospital Ridgeview Institute Emory Adventist Hospital Atlanta VA Medical Center Hillside Hospital Children's Healthcare at Egleston Emory University Hospital North Fulton Regional Hospital Laurel Heights Hospital Wellstar Kennestone Hospital Kindred Hospital Atlanta DeKalb Medical Center Emory University Hospital Midtown Select Specialty Hospital Atlanta Atlanta Medical Center DeKalb Medical Grady Health System Gwinnett Medical Center Duluth Wellstar Cobb Hospital Devereux Georgia Treatment Network Glancy Rehabilitation Center Emory Johns Creek Hospital Georgia Regional Hospital at Atlanta Regency Hospital of South Atlanta South Fulton Medical Center DeKalb Medical Center at Hillandale Emory Eastside Medical Center Gwinnett Medical Center Anchor Hospital Northside Hospital Forsyth SummitRidge Center for Psychiatry & Addiction Medicine Northside Hospital Cherokee Southern Regional Medical Center Wellstar Douglas Hospital Inner Harbour Hospitals Wellstar Paulding Hospital Rockdale Medical Center Henry Medical Center Cartersville Medical Center Piedmont Fayette Hospital Tanner Medical Center Villa Rica 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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