Electroretinography Center - Worcester, MA
Worcester 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 Worcester * Denis J Fitzgerald MD  Worcester Eye Consultants  Vitreo-Retinal Associates Worcester  Vitreo-Retinal Associates Worcester  Vitreo-Retinal Associates Worcester  Retina Consultants of Worcester  Meltzer Eye Care Center  Meltzer Eye Care Center  Worcester Ophthalmology Assoc  Worcester Ophthalmology Assoc  Worcester Ophthalmology Assoc  Worcester Ophthalmology Assoc  Eye Surgeons PC  Robert Gise MD  Jeffrey D Levine MD  Fallon Clinic Ophthalmology  Fallon Clinic Ophthalmology  Fallon Clinic Ophthalmology  Fallon Clinic Ophthalmology  Fallon Clinic Ophthalmology  Dennis Arinella MD  Edward L Kazarian MD  Rice Ophthalmology Associates  Dennis Arinella MD  Amrik Pabley MD  Keamy Eye & Laser Centre  Eye Physicians of Marlborough  Eye Physicians of Marlborough  Hugh Cooper 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  D'Ambrosio Eye Care  D'Ambrosio Eye Care  D'Ambrosio Eye Care  Milford Eye Care  Tad D Baum MD  Southbridge Ophthalmic Assoc  Gardner Eye Associates  Pediatrics and Adult Ophthalmics  Pediatrics and Adult Ophthalmics  Pediatrics and Adult Ophthalmics  Ophthalmic Consultants Of Boston  The Eye Center  Ophthalmic Consultants Of Boston  The Eye Center  Ophthalmic Consultants Of Boston  Valley Eye Physicians & Surgeons  Valley Eye Physicians & Surgeons  Valley Eye Physicians & Surgeons  Robert H Gushard MD  Retina Eye Care  Balin Eye & Laser Center  Milford Franklin Eye Center  Milford Franklin Eye Center  Lexington Eye Associates  Lexington Eye Associates  Lexington Eye Associates  Lexington Eye Associates  Lexington Eye Associates  Lexington Eye Associates  Lexington Eye Associates  Lexington Eye Associates  Bruce Gillers MD  Family Eye Care Center  Lexington Eye Associates  Peter J Kelly MD PC  New England Eye Center  Kornmehl Laser Eye Associates  Eye & Lasik Center  Eye & Lasik Center  Daher Vision  Ophthalmic Consultants Of Boston  Ophthalmic Consultants Of Boston  Ophthalmic Consultants Of Boston  Newton-Wellesley Eye Associates  Miriam Dougherty MD  Eye Care and Laser Surgery  Newton-Wellesley Eye Associates  Eye Care and Laser Surgery  Newton-Wellesley Eye Associates  Children's Hospital Boston Ophthalmology  Dornfeld Eye Center  Children's Hospital Boston Ophthalmology  Putnoi Putnoi & Richler MDs  Putnoi Putnoi & Richler MDs  Putnoi Putnoi & Richler MDs  Deanna P Ricker MD  Talamo Laser Eye Consultants  Children's Hospital Boston Ophthalmology  Children's Hospital Boston Ophthalmology  Robert J Austin Jr. MD  Boston Eye Associates  Eye Associates of Needham PC  Eye Associates of Needham PC  Boston Eye Associates  Massachusetts Eye Associates Worcester, 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 Worcester
Nearby Worcester Hospitals *St Vincent Hospital at Worcester Medical Center UMass Memorial Medical Center Memorial Campus Adcare Hospital of Worcester Fairlawn Rehabilitation Hospital Worcester State Hospital UMass Memorial Medical Center University Campus Westborough State Hospital Whittier Rehabilitation Hospital Westborough UMass Memorial Clinton Hospital UMass Memorial Marlborough Hospital Hubbard Regional Hospital Milford Regional Medical Center Harrington Memorial Hospital Eleanor Slater Hospital Zambarano Unit HealthAlliance Hospital Leominster Campus MetroWest Medical Center Framingham Union Hospital Baystate Mary Lane Hospital Health Alliance Burbank Hospital Landmark Medical Center Kindred Specialty Hospital Natick MetroWest Medical Center Leonard Morse Hospital Heywood Hospital Nashoba Valley Medical Center Rehabilitation Hospital of Rhode Island Day Kimball Hospital Emerson Hospital Wing Memorial Hospital & Medical Center Newton Wellesley Hospital Beth Israel Deaconess Hospital Needham Westwood Lodge Hospital Athol Memorial Hospital Caritas Norwood Hospital Edith Nourse Rogers Memorial Veterans Hospital VA Boston Healthcare System West Roxbury Campus McLean Hospital Arbour-Fuller Hospital Our Lady of Fatima Hospital Bournewood Hospital Lahey Clinic Medical Center Caritas St Elizabeth's Medical Center Franciscan Hospital for Children Kindred Hospital Boston Hebrew Rehabilitation Center for the Aged Faulkner Hospital Memorial Hospital of Rhode Island Sturdy Memorial Hospital Mount Auburn 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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