Electroretinography Center - Norwalk, CT
Norwalk 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 Norwalk * Ct Glaucoma Associates  David H McCullough MD & Associates  CT Retina Consultants LLC  James Wong MD  Ct Glaucoma Associates  Scott Spector's Eyecare Center  Scott Spector's Eyecare Center  Retina Associates of CT PC  New England Retina Associates  New England Retina Associates  New England Retina Associates  New England Retina Associates  Cesar A Sierra MD  New England Retina Associates  Stuart D Aaron MD  James W Talbot MD  Jacqueline J Littzi MD  Paul A Goldberg MD  Drs Ostriker & Associates  Ophthalmic Consultants of Connecticut  Eric Wasserman MD  Richard B Weber MD  Greenwich Ophthalmology Associates PC  Greenwich Ophthalmology Associates PC  Stamford Ophthalmology  Stamford Ophthalmology  Stamford Ophthalmology  Stamford Ophthalmology  Ridgefield Ophthalmology  Peter Small MD  Peter La Forte MD PC  Gregory Gallousis MD  Joan T Gewirtz MD  Peter La Forte MD PC  Mark Steckel MD  Ophthalmic Surgeons Of Greater Bridgeport  Ophthalmic Surgeons Of Greater Bridgeport  Ophthalmic Surgeons Of Greater Bridgeport  Ophthalmic Surgeons Of Greater Bridgeport  Ophthalmic Consultants of Connecticut  CT Retina Consultants LLC  Eye Group of Connecticut LLC  CT Retina Consultants LLC  Eye Group of Connecticut LLC  CT Retina Consultants LLC  Reuven Rudich MD  Eye Group of Connecticut LLC  Anitha J Patel MD  Delia M Manjoney MD & Daniel S Kessler MD  Delia M Manjoney MD & Daniel S Kessler MD  Greenwich Ophthalmology Associates PC  Greenwich Ophthalmology Associates PC  Greenwich Ophthalmology Associates PC  Oculofacial Associates of Connecticut LLC  Steven C Thornquist MD  Eye Care of Danbury LLC  Acuity Eye Care  Acuity Eye Care  Hindola Konrad MD  Vitreoretinal Surgeons LLC  Danbury Eye Physicians & Surgeons PC  Danbury Eye Physicians & Surgeons PC  Danbury Eye Physicians & Surgeons PC  Danbury Eye Physicians & Surgeons PC  Danbury Eye Physicians & Surgeons PC  Danbury Eye Physicians & Surgeons PC  Danbury Eye Physicians & Surgeons PC  Danbury Optical  Ophthalmic Associates PC  Ophthalmic Associates PC  Ophthalmic Associates PC  Ophthalmic Associates PC  Eye Surgery Associates LLC  Eye Surgery Associates LLC  Arnold D Pearlstone MD LLC  Eye Physicians & Surgeons PC  Eye Physicians & Surgeons PC  Eye Physicians & Surgeons PC  Eye Physicians & Surgeons PC  Joseph Sokol MD  James R Pinke MD  Eye Associates  Charles J Oestrich MD  Eye Physicians & Surgeons PC  Eye Physicians & Surgeons PC  Opticare Eye Health & Vision Centers  The Eye Care Group  The Eye Care Group  The Eye Care Group  The Eye Care Group  The Eye Care Group  The Eye Care Group  The Eye Care Group  The Eye Care Group  Iraj Rahmati MD  Stephen B Castracane MD  New Haven Ophthalmology Associates  Robert A Wiznia MD  Yale Eye Center  Yale Eye Center Norwalk, ConnecticutUpcoming Local Events2012-06-02
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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 Norwalk
Nearby Norwalk Hospitals *Norwalk Hospital Silver Hill Hospital Hall-Brooke Behavioral Health Services Stamford Hospital St Vincent's Medical Center Four Winds Hospital Greenwich Hospital Greater Bridgeport Community Mental Health Center Bridgeport Hospital Northern Westchester Hospital Center Danbury Hospital Northport VA Medical Center Rye Hospital Center Huntington Hospital St Vincent's Hospital Westchester Milford Hospital New York Presbyterian Westchester White Plains Hospital Center The Burke Rehabilitation Hospital Blythedale Children's Hospital Maria Fareri Children's Hospital Westchester Medical Center Putnam Hospital Center Griffin Hospital Glen Cove Hospital Stony Lodge Hospital Stony Brook University Medical Center Phelps Memorial Hospital Center St Charles Hospital St Catherine of Siena Medical Center Syosset Hospital John T Mather Memorial Hospital Dobbs Ferry Pavillion @ St Johns Riverside Hospital Pilgrim Psychiatric Center Sound Shore Medical Center of Westchester Sagamore Children's Psychiatric Center Lawrence Hospital Center VA Connecticut Healthcare System West Haven Campus Plainview Hospital Hudson Valley Hospital Center Nyack Hospital FDR Campus of the VA Hudson Valley Healthcare System Montrose Hospital of St Raphael St Francis Hospital The Heart Center Mount Vernon Hospital Connecticut Mental Health Center Yale-New Haven Hospital Yale-New Haven Psychiatric Hospital North Division of Montefiore Medical Center Saint Joseph's Medical Center St John's Riverside Hospital Rockland Psychiatric Center Helen Hayes Hospital New Island Hospital North Shore University Hospital at Manhasset New Milford Hospital Rockland Children's Psychiatric Center Jacobi Medical Center Nassau University Medical Center Jack D Weiler Hospital Bronx Children's Psychiatric Center Bronx Psychiatric Center Calvary Hospital Montefiore Medical Center North Central Bronx Hospital Winthrop University Hospital New York Westchester Square Medical Center Southside Hospital Long Island Jewish Medical Center Schneider Children's Hospital The Zucker Hillside Hospital James J Peters VA Medical Center St Barnabas Hospital Good Samaritan Hospital Medical Center South Oaks 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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