Electroretinography Center - New Bedford, MA
New Bedford 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 New Bedford * Massachussets Southeastern Eye Center  Eye Health Vision Centers  Eye Health Vision Centers  Eye Health Vision Centers  Eye Health Vision Centers  Eye Health Vision Centers  Eye Health Vision Centers  Eye Health Vision Centers  Eye Health Vision Centers  Boston University Eye Associates Inc  Southcoast Eye Care Inc  Southcoast Eye Care Inc  Southcoast Eye Care Inc  Center for Eye Health Inc  Center for Eye Health Inc  Center for Eye Health Inc  Center for Eye Health Inc  Center for Eye Health Inc  Rhode Island Eye Institute  Rhode Island Eye Institute  Rhode Island Eye Institute  Rhode Island Eye Institute  Rhode Island Eye Institute  Rhode Island Eye Institute  Rhode Island Eye Institute  A Richard Cote MD  Center For Sight  Center For Sight  Post O'Connor & Kadrmas Eye Centers PC  Post O'Connor & Kadrmas Eye Centers PC  Post O'Connor & Kadrmas Eye Centers PC  Post O'Connor & Kadrmas Eye Centers PC  Post O'Connor & Kadrmas Eye Centers PC  Boston University Eye Associates Inc  Upper Cape Ophthalmology Inc  Upper Cape Ophthalmology Inc  Upper Cape Ophthalmology Inc  Strecker Eye Center  William H Schutten MD  Boston University Eye Associates Inc  Associated Eye Surgeons  Associated Eye Surgeons  Eye Health Services  Eye Health Services  Eye Health Services  Paul B Cotter MD  Ophthalmic Consultants Of Boston  Ophthalmic Consultants Of Boston  Ophthalmic Consultants Of Boston  Ophthalmic Consultants Of Boston  Eye Health Services  Eye Health Services  Eye Health Services  Children's Hospital Boston Ophthalmology  Dehn & Masci Associates  Peter M Fay MD  Southern New England Retina Associates  Dehn & Masci Associates  Boston University Eye Associates  Boston University Eye Associates  Eye Health Services  Eye Health Services  Eye Health Services  Eye Health Services  Lawrence E Weene MD  Eye Health Services  Medical Eye Care Associates PC  Medical Eye Care Associates PC  Eye Health Services  Eye Health Services  Eduardo D Talusan MD  Eye Health Services  South Suburban Ophthalmology  Nielsen Eye Center  Pediatric Eye Care for the 21st Century  Eye Health Services  Eye Health Services  Eye Health Services  MEEI South Suburban Center for Otolaryngology  Medical Eye Care Associates PC  Eye Health Services  Eye Care Specialists  Eye Care Specialists  Groden Eye Care  Eye Care Specialists  Milford Franklin Eye Center  Milford Franklin Eye Center  Cornea Consultants  Eugene C Ciccarelli MD  Jean B Charles MD  Robert A Lytle MD  Codman Square Health Center  Ophthalmic Consultants Of Boston  Ophthalmic Consultants Of Boston  Ophthalmic Consultants Of Boston  Ophthalmic Consultants Of Boston  Robert H Gushard MD  Dorchester House Multi-Service Center  Dedham Medical Associates  Dedham Medical Associates New Bedford, 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 New Bedford
Nearby New Bedford Hospitals *St Luke's Hospital New Bedford Rehabilitation Hospital Charlton Memorial Hospital Saint Anne's Hospital Tobey Hospital Falmouth Hospital Morton Hospital & Medical Center Taunton State Hospital Newport Hospital Martha's Vineyard Hospital Bradley Hospital Rehabilitation Hospital of the Cape & Islands Jordan Hospital Hasbro Children's Hospital Rhode Island Hospital Sturdy Memorial Hospital Women & Infants Hospital of Rhode Island Butler Hospital Kent Hospital Southern New England Rehabilitation Center St Joseph Health Services Memorial Hospital of Rhode Island The Miriam Hospital Eleanor Slater Hospital Pastore Center Providence VA Medical Center Roger Williams Medical Center Arbour-Fuller Hospital Boston VA Healthcare System Brockton Our Lady of Fatima Hospital Signature Healthcare Brockton Hospital Caritas Good Samaritan Medical Center South County Hospital Kindred Specialty Hospital Stoughton Pembroke Hospital Cape Cod 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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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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