Electroretinography Center - Waltham, MA
Waltham 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 Waltham * 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  Children's Hospital Boston Ophthalmology  Children's Hospital Boston Ophthalmology  Ophthalmic Consultants Of Boston  Ophthalmic Consultants Of Boston  Ophthalmic Consultants Of Boston  Ophthalmic Consultants Of Boston  Talamo Laser Eye Consultants  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  Daher Vision  Kornmehl Laser Eye Associates  New England Eye Center  Ernst Meyer MD  Lexington Eye Associates  Lexington Eye Associates  Lexington Eye Associates  Lexington Eye Associates  Lexington Eye Associates  Lexington Eye Associates  Lexington Eye Associates  Lexington Eye Associates  Lexington Eye Associates  Larry Roth MD  Lexington Eye Associates  Lexington Eye Associates  Lexington Eye Associates  Charles A Barsam MD  Paul Barsam MD  Stephen Youngwirth MD  Boston Eye Associates  Eye Associates of Needham PC  Eye Associates of Needham PC  James W Rosenberg MD  Boston Eye Associates  Eye Associates PC  Eye Associates PC  Eye Associates PC  Irving Weissman MD  Eye Associates PC  Deanna P Ricker MD  New England Eye Center  Kenneth Stampfer MD  Lahey Clinic Medical Center Ophthalmology  Lahey Clinic Medical Center Ophthalmology  Lahey Clinic Medical Center Ophthalmology  Lahey Clinic Medical Center Ophthalmology  Retina Specialists of Boston Inc  Retina Specialists of Boston Inc  Retina Specialists of Boston Inc  Lahey Clinic Medical Center Ophthalmology  Lahey Clinic Medical Center Ophthalmology  Dedham Medical Associates  Harvard Vanguard Medical Associates Somerville  Lahey Clinic Medical Center Ophthalmology  Dedham Medical Associates  Harvard Vanguard Medical Associates Somerville  James Lee MD  Jeffrey L Taveras MD  Saragas Eye Center & Laser Center  American Vision Association  North Suburban Eye Associates  North Suburban Eye Associates  North Suburban Eye Associates  Cornea Consultants  Eye MDs Of Greater Boston PC  Eye MDs Of Greater Boston PC  Boston Eye Group  Boston Eye Group  Ophthalmic Consultants Of Boston  Boston Eye Physicians & Surgeons  Boston Eye Physicians & Surgeons  Boston Eye Physicians & Surgeons  Edward F Goodman MD  Boston Eye Physicians & Surgeons  Boston Eye Physicians & Surgeons  Boston Eye Physicians & Surgeons  Boston Eye Physicians & Surgeons  Caroline Marten-Ellis MD  Boston Eye Physicians & Surgeons  Cambridge Health Alliance Eye Center  Cambridge Health Alliance Eye Center  Boston Eye Physicians & Surgeons  Jason N Gilbert MD  Eye Associates PC  Eye Associates PC  Eye Associates PC  Medical Eye Care Associates PC  Michael Olstein MD  Medical Eye Care Associates PC  Beth Israel Deaconess Ophthalmology Waltham, 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 Waltham
Nearby Waltham Hospitals *McLean Hospital Newton Wellesley Hospital Caritas St Elizabeth's Medical Center Franciscan Hospital for Children Kindred Hospital Boston Mount Auburn Hospital Arbour HRI Hospital Somerville Hospital Youville Hospital and Rehabilitation Center Cambridge Hospital Beth Israel Deaconess Hospital Needham HEALTHSOUTH New England Rehabilitation Hospital Bournewood Hospital Beth Israel Deaconess Medical Center Brigham & Women's Hospital Dana Farber Cancer Institute Children's Hospital Boston Lawrence Memorial Hospital VA Boston Healthcare System Jamaica Plain Campus New England Baptist Hospital Arbour Hospital Faulkner Hospital Hebrew Rehabilitation Center for the Aged Lahey Clinic Medical Center VA Boston Healthcare System West Roxbury Campus M I T Medical Kindred Specialty Hospital Natick MetroWest Medical Center Leonard Morse Hospital Radius Specialty Hospital Boston Massachusetts Eye & Ear Infirmary Massachusetts General Hospital Winchester Hospital Emerson Hospital Lemuel Shattuck Hospital Shriners Hospitals for Children Boston Burn Hospital Spaulding Rehabilitation Hospital Boston Medical Center Massachusetts Mental Health Center Edith Nourse Rogers Memorial Veterans Hospital Tufts New England Medical Center Whidden Memorial Hospital Melrose Wakefield Hospital Lawrence F Quigley Memorial Hospital Caritas Carney Hospital MetroWest Medical Center Framingham Union Hospital Westwood Lodge Hospital Milton Hospital Caritas Norwood Hospital Quincy Medical Center Massachusetts Hospital School North Shore Medical Center Tewksbury Hospital UMass Memorial Marlborough Hospital Braintree Rehabilitation Hospital New England Sinai Hospital & Rehabilitation Center Whittier Rehabilitation Hospital Westborough Kindred Hospital Boston North Shore Kindred Specialty Hospital Braintree Saints Medical Center Salem Hospital & the Birthplace North Shore Children's Hospital HC Solomon Mental Health Center Lowell General Hospital Shaughnessy-Kaplan Rehabilitation Hospital Isham Health Center Westborough State Hospital South Shore Hospital Kindred Specialty Hospital Stoughton Caritas Good Samaritan Medical Center Nashoba Valley Medical Center Beverly Hospital Milford Regional Medical Center Boston VA Healthcare System Brockton Lawrence General Hospital Signature Healthcare Brockton 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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