Electroretinography Center - Westfield, MA
Westfield 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 Westfield * Theodore J Krawiec MD  Eye & Lasik Center  Eye & Lasik Center  Springfield Eye Associates Inc  Springfield Eye Associates Inc  Springfield Eye Associates Inc  Springfield Eye Associates Inc  James S Rosenthal MD PC  Baystate Eye Care Group  Baystate Eye Care Group  Steven J Covici MD  Baystate Eye Care Group  Eyesight & Surgery Associates  Ronald J Gailun MD  Henderson Eye Center  Eyesight & Surgery Associates  Richard S Luftman MD  Ingis Eye Care  John A Thayer MD  Robert J Donohue MD  Robert J Donohue MD  Pioneer Valley Eye Associates  Alfred Hutt MD  Pioneer Valley Eye Associates  Robert J Donohue MD  Litscher Eye Center  Papale Eye Center  Papale Eye Center  Hampden Eye Physicians & Surgeons PC  Peter J Kelly MD PC  Balin Eye & Laser Center  Eye Physicians of Northampton  Eye Physicians of Northampton  Eye Physicians of Northampton  Norman A Spencer MD  Robert J Austin Jr. MD  Hugh Cooper MD  Southbridge Ophthalmic Assoc  Berkshire Eye Center  Berkshire Eye Center  Berkshire Eye Center  Berkshire Eye Center  The Center For Sight  Meltzer Eye Care Center  Gold Ophthalmologic Associates PC  Advanced Eye Care  D'Ambrosio Eye Care  D'Ambrosio Eye Care  D'Ambrosio Eye Care  Gardner Eye Associates  Amrik Pabley MD  Jeffrey D Levine MD  Eye Surgeons PC  Denis J Fitzgerald MD  Worcester Eye Consultants  Fallon Clinic Ophthalmology  Fallon Clinic Ophthalmology  Fallon Clinic Ophthalmology  Fallon Clinic Ophthalmology  Fallon Clinic Ophthalmology  Fallon Clinic Ophthalmology  Fallon Clinic Ophthalmology  Vitreo-Retinal Associates Worcester  Retina Consultants of Worcester  Meltzer Eye Care Center  Worcester Ophthalmology Assoc  Worcester Ophthalmology Assoc  Worcester Ophthalmology Assoc  Worcester Ophthalmology Assoc  Robert Gise MD  Dennis Arinella MD  Edward L Kazarian MD  Rice Ophthalmology Associates  Dennis Arinella MD  Tad D Baum MD  New England Eye Center  New England Eye Center  New England Eye Center  New England Eye Center  New England Eye Center  D'Ambrosio Eye Care  Keamy Eye & Laser Centre  Eye Physicians of Marlborough  Eye Physicians of Marlborough  Milford Eye Care  Valley Eye Physicians & Surgeons  Valley Eye Physicians & Surgeons  Valley Eye Physicians & Surgeons  Valley Eye Physicians & Surgeons  Robert H Gushard MD  Pediatrics and Adult Ophthalmics  Pediatrics and Adult Ophthalmics  Pediatrics and Adult Ophthalmics  Ophthalmic Consultants Of Boston  The Eye Center  Ophthalmic Consultants Of Boston  Ophthalmic Consultants Of Boston  Milford Franklin Eye Center  Milford Franklin Eye Center  Retina Eye Care Westfield, MassachusettsUpcoming Local Events2012-05-26
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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 Westfield
Nearby Westfield Hospitals *Western Massachusetts Hospital Baystate Medical Center Mercy Medical Center Weldon Rehabilitation Hospital Shriners Hospital for Children Noble Hospital Providence Hospital Kindred Hospital Park View Holyoke Medical Center HEALTHSOUTH Rehabilitation Hospital of Western Massachusetts Cooley Dickinson Hospital Northampton VA Medical Center Wing Memorial Hospital & Medical Center Johnson Memorial Hospital Rockville General Hospital St Francis Care Hospital Mount Sinai Campus The Hospital at Hebrew Healthcare Mount Sinai Rehabilitation Hospital St Francis Hospital & Medical Center Manchester Memorial Hospital Baystate Mary Lane Hospital Hungerford Emergency & Medical Care Connecticut Children's Medical Center Hartford Hospital Institute of Living Hartford Hospital University of Connecticut Health Center John Dempsey VA Connecticut Healthcare System Newington Campus Cedarcrest Hospital Hospital for Special Care The Hospital of Central Connecticut New Britain Campus Veterans Home & Hospital Rocky Hill Harrington Memorial Hospital Charlotte Hungerford Hospital Bristol Hospital Franklin 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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