Electroretinography Center - Peabody, MA
Peabody 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 Peabody * Lahey Clinic Medical Center Ophthalmology  Lahey Clinic Medical Center Ophthalmology  Lahey Clinic Medical Center Ophthalmology  Lahey Clinic Medical Center Ophthalmology  Lahey Clinic Medical Center Ophthalmology  Children's Hospital Boston Ophthalmology  New England Eye Consultants  Lahey Clinic Medical Center Ophthalmology  Lahey Clinic Medical Center Ophthalmology  Lahey Clinic Medical Center Ophthalmology  Lahey Clinic Medical Center Ophthalmology  Lahey Clinic Medical Center Ophthalmology  Lahey Clinic Medical Center Ophthalmology  Lahey Clinic Medical Center Ophthalmology  Lahey Clinic Medical Center Ophthalmology  Lahey Clinic Medical Center Ophthalmology  Children's Hospital Boston Ophthalmology  Schepens Retina Associates  Schepens Retina Associates  Joseph J Greco MD  Krishna Gaddipati MD  Microsurgical Eye Consultants  Microsurgical Eye Consultants  Microsurgical Eye Consultants  Northeast Eye Care  Northeast Eye Care  Freedman Eye Center  Ophthalmic Consultants Of Boston  Ophthalmic Consultants Of Boston  Ophthalmic Consultants Of Boston  New England Eye Center  Eye Care PC  Essex Vitreoretinal Services Inc  Eye Care PC  Eye Care PC  Leon L Remis MD  Essex Vitreoretinal Services Inc  North Suburban Eye Associates  North Suburban Eye Associates  North Suburban Eye Associates  Kuldip K Vaid MD  James Lee MD  Beth Israel Deaconess Ophthalmology  North Shore Ophthalmology  North Shore Ophthalmology  David E Eisenberg MD PC  Gurley Eye Care Associates  Gurley Eye Care Associates  Gurley Eye Care Associates  David M Guyette MD  Eye Care Consultants  Robert G Alexander MD  Horsley Eye Center  Ophthalmic Consultants Of Boston  Michael Wiedman MD & Jacquelyn Stevens MD  Michael Wiedman MD & Jacquelyn Stevens MD  Michael Olstein MD  Ophthalmic Consultants Of Boston  Ophthalmic Consultants Of Boston  Ophthalmic Consultants Of Boston  Ophthalmic Consultants Of Boston  Ophthalmic Consultants Of Boston  Daher Vision  Ophthalmic Consultants Of Boston  Ophthalmic Consultants Of Boston  Ophthalmic Consultants Of Boston  Arthur S Grove Jr. MD  Ophthalmic Consultants Of Boston  Ophthalmic Consultants Of Boston  Ophthalmic Consultants Of Boston  Ophthalmic Consultants Of Boston  Ophthalmic Consultants Of Boston  Arnold J Kroll MD  Ophthalmic Consultants Of Boston  Ophthalmic Consultants Of Boston  Ophthalmic Consultants Of Boston  Ophthalmic Consultants Of Boston  Ophthalmic Consultants Of Boston  Ophthalmic Consultants Of Boston  Ophthalmic Consultants Of Boston  Ophthalmic Consultants Of Boston  Ophthalmic Consultants Of Boston  Ophthalmic Consultants Of Boston  Ophthalmic Consultants Of Boston  Jason N Gilbert MD  Cornea Consultants  Cornea Consultants  Mass Eye & Ear Infirmary Electroretinography  MA Eye & Ear Infirmary Comprehensive Services  Massachusetts Eye & Ear Infirmary Neuro-Ophthalmology  MA Eye & Ear Infirmary Comprehensive Services  MA Eye & Ear Infirmary Glaucoma Services  MA Eye & Ear Infirmary Cornea Section Three  MA Eye & Ear Infirmary Comprehensive Services  MA Eye & Ear Infirmary Cornea Section Three  MA Eye & Ear Infirmary Cornea Section Three  MA Eye & Ear Infirmary Retinopathy Services  Ephraim Friedman MD  MA Eye & Ear Infirmary Comprehensive Services  MA Eye & Ear Infirmary Retinopathy Services Peabody, 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 Usher syndrome?Usher syndrome is the most common condition that affects both hearing and vision. A syndrome is a disease or disorder that has more than one feature or symptom. The major symptoms of Usher syndrome are hearing loss and an eye disorder called retinitis pigmentosa, or RP. RP causes night-blindness and a loss of peripheral vision (side vision) through the progressive degeneration of the retina. The retina is a light-sensitive tissue at the back of the eye and is crucial for vision. As RP progresses, the field of vision narrows - a condition known as "tunnel vision" - until only central vision (the ability to see straight ahead) remains. Many people with Usher syndrome also have severe balance problems. There are three clinical types of Usher syndrome:
In the United States, types 1 and 2 are the most common types. Together, they... Other Related Electroretinography ArticlesEmergency Contact for Peabody
Nearby Peabody Hospitals *Kindred Hospital Boston North Shore North Shore Children's Hospital Salem Hospital & the Birthplace Shaughnessy-Kaplan Rehabilitation Hospital North Shore Medical Center Beverly Hospital Melrose Wakefield Hospital Whidden Memorial Hospital Lawrence F Quigley Memorial Hospital Winchester Hospital Lawrence Memorial Hospital HEALTHSOUTH New England Rehabilitation Hospital Baldpate Hospital Somerville Hospital Spaulding Rehabilitation Hospital Shriners Hospitals for Children Boston Burn Hospital Massachusetts General Hospital Isham Health Center Massachusetts Eye & Ear Infirmary Cambridge Hospital Youville Hospital and Rehabilitation Center M I T Medical Tufts New England Medical Center Addison Gilbert Hospital Lahey Clinic Medical Center Mount Auburn Hospital Boston Medical Center Arbour HRI Hospital Beth Israel Deaconess Medical Center Children's Hospital Boston Tewksbury Hospital Dana Farber Cancer Institute Brigham & Women's Hospital New England Baptist Hospital Franciscan Hospital for Children McLean Hospital Kindred Hospital Boston Caritas St Elizabeth's Medical Center Radius Specialty Hospital Boston VA Boston Healthcare System Jamaica Plain Campus Lawrence General Hospital Arbour Hospital Merrimack Valley Hospital Edith Nourse Rogers Memorial Veterans Hospital Lemuel Shattuck Hospital Massachusetts Mental Health Center Caritas Holy Family Hospital and Medical Center Caritas Carney Hospital Faulkner Hospital Whittier Rehabilitation Hospital Haverhill Hebrew Rehabilitation Center for the Aged Bournewood Hospital Quincy Medical Center Anna Jaques Hospital Milton Hospital Saints Medical Center Newton Wellesley Hospital Northeast Rehabilitation Health Network VA Boston Healthcare System West Roxbury Campus Emerson Hospital Lowell General Hospital HC Solomon Mental Health Center Braintree Rehabilitation Hospital Beth Israel Deaconess Hospital Needham South Shore Hospital Kindred Specialty Hospital Braintree Massachusetts Hospital School Hampstead Hospital Kindred Specialty Hospital Natick MetroWest Medical Center Leonard Morse Hospital Westwood Lodge Hospital Caritas Norwood Hospital New England Sinai Hospital & Rehabilitation Center MetroWest Medical Center Framingham Union Hospital Caritas Good Samaritan 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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Usher Syndrome
- There are three types of Usher (Usher's) syndrome, the most common condition that affects both vision and hearing. The major symptoms of Usher syndrome include retinitis pigmentosa (night-blindness and a loss of peripheral vision), and hearing loss. Usher syndrome is a genetic condition. There is no cure for Usher syndrome.
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Usher Syndrome
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