Electroretinography Center - Alpharetta, GA
Alpharetta 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 Alpharetta * North Fulton Eye Center  North Fulton Eye Center  North Fulton Eye Center  Thomas Eye Group PC  Thomas Eye Group PC  Thomas Eye Group PC  Thomas Eye Group PC  Lotus Vision  Thomas Eye Group PC  Robert L Hendley MD  Tucker & Associates Eyecare & Laser Center  Julie Ann Galbreath-Wolf OD  William Segal MD  Marietta Eye Clinic PA  Marietta Eye Clinic PA  Milan Eye Center  Chen Eye Center  Wolfson Eye Institute  Wolfson Eye Institute  Woolfson Eye Institute  Eye Physicians & Surgeons PC  Gary A Beldick MD  Eye Physicians & Surgeons PC  Eye Physicians & Surgeons PC  Eye Physicians & Surgeons PC  Eye Physicians & Surgeons PC  Eye Physicians & Surgeons PC  Thomas Eye Group PC  Thomas Eye Group PC  Thomas Eye Group PC  Thomas Eye Group PC  Thomas Eye Group PC  Thomas Eye Group PC  Thomas Eye Group PC  Thomas Eye Group PC  Thomas Eye Group PC  Pediatric Eye Care  Thomas Eye Group PC  Eye Consultants of Atlanta  Georgia Eye Partners  Georgia Eye Partners  Eye Consultants of Atlanta  Georgia Retina PC  Georgia Retina PC  Eye Consultants of Atlanta  Georgia Retina PC  Georgia Retina PC  Edwin H Donnelly MD  Terry W Taylor MD  Atlanta Oculus Cosmetic Surgeons  Atlanta Oculus Cosmetic Surgeons  The Eye Services  The Eye Services  Atlanta Oculus Cosmetic Surgeons  West Paces Omni Eye Services  Atlanta Ophthalmology Associates PC  Atlanta Ophthalmology Associates PC  Atlanta Ophthalmology Associates PC  Georgia Retina PC  James H Dew Jr. MD  Paul J Glass MD  Georgia Eye Associates  Georgia Eye Associates  Georgia Eye Associates  Georgia Eye Associates  Thomas Eye Group PC  Advanced Vision PC  Northlake Eye Center  Windy Hill Ophthalmology and Optical  Marietta Eye Clinic PA  Mark J Safra MD  Etowah Eye Clinic  Marietta Eye Clinic PA  John Davidson MD  West Paces Omni Eye Services  Eye Consultants of Atlanta  Paces Plastic Surgery & Recovery Ctr  Marietta Eye Clinic PA  Marietta Eye Clinic PA  Marietta Eye Clinic PA  Marietta Eye Clinic PA  Marietta Eye Clinic PA  Marietta Eye Clinic PA  Marietta Eye Clinic PA  Eye Consultants of Atlanta  Georgia Retina PC  Weiner Eye Center  Eye Consultants of Atlanta  Currell V Berry MD  Georgia Eye Specialists Inc  Georgia Eye Specialists Inc  Eye Physicians & Surgeons PC  Eye Physicians & Surgeons PC  Emory Eye Center  Emory Eye Center  Emory Eye Center  Emory Eye Center  Emory Eye Center  Eye Consultants of Atlanta  Eye Consultants of Atlanta Alpharetta, GeorgiaUpcoming Local Events2012-06-09
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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 Alpharetta
Nearby Alpharetta Hospitals *North Fulton Regional Hospital Emory Johns Creek Hospital Gwinnett Medical Center Duluth Glancy Rehabilitation Center Peachford Behavioral Health System of Atlanta Northside Hospital Forsyth Saint Joseph's Hospital of Atlanta Children's Healthcare at Scottish Rite Northside Hospital Wellstar Windy Hill Hospital Northside Hospital Cherokee Wellstar Kennestone Hospital Gwinnett Medical Center Atlanta VA Medical Center Wesley Woods Geriatric Hospital Devereux Georgia Treatment Network Children's Healthcare at Egleston DeKalb Medical Center Emory University Hospital Emory Adventist Hospital Ridgeview Institute SummitRidge Center for Psychiatry & Addiction Medicine Piedmont Hospital Shepherd Center Hillside Hospital DeKalb Medical Laurel Heights Hospital Emory Eastside Medical Center Kindred Hospital Atlanta Emory University Hospital Midtown Select Specialty Hospital Atlanta Atlanta Medical Center Grady Health System Wellstar Cobb Hospital Georgia Regional Hospital at Atlanta DeKalb Medical Center at Hillandale Piedmont Mountainside Hospital Regency Hospital of South Atlanta South Fulton Medical Center Cartersville Medical Center Northeast Georgia Medical Center Rockdale Medical Center Northeast Georgia Medical Center Lanier Park Campus Anchor Hospital Wellstar Paulding Hospital Barrow Regional Medical Center Wellstar Douglas Hospital Southern 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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