Electroretinography Center - McKinney, TX
McKinney 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 McKinney * Heritage Eye Center  Heritage Eye Center  Texas Vision & Laser Center  Michelle L Brochner MD  Eye Care Texas  Robert Scharf MD  William Boothe MD  Drs Frazee Passmore Swanson & Ahmad  Drs Frazee Passmore Swanson & Ahmad  Eye Surgery of Texas  Joel Leffler MD  Drs Frazee Passmore Swanson & Ahmad  Drs Frazee Passmore Swanson & Ahmad  Vista Ophthalmology Associates  Jacqueline Co MD PA  Lyle R Teska MD  Merhdad Mazaheri MD  Retina Specialists  Retina Specialists  North Dallas Eye Associates  North Dallas Eye Associates  North Dallas Eye Associates  Pediatric Ophthalmology PA  Ophthalmology Associates  Kim K Maale MD  Family Vision Care  Garland Opthalmology Center  Garland Opthalmology Center  Garland Opthalmology Center  Shelby A Wyll MD  Lee Eye Surgery Clinic  Craig D Smith MD  Bob L Pansick MD  Rhufus Allen MD  Robert Tenery Jr. MD  Gordon H Newman MD  Gordon H Newman MD  Glaucoma Associates of Texas  Glaucoma Associates of Texas  Glaucoma Associates of Texas  Glaucoma Associates of Texas  Glaucoma Associates of Texas  Craig Bolton MD  Aubry Abramson MD  Bert Bryan MD  Linda L Burk MD  David W Meltzer MD  James H Merritt MD  Karen B Saland MD  Dennis B Kay MD  Vision Quest  Dallas Eye Care Associates  Vision Quest  Matthew Lippas MD  Vision Quest  Dallas Eye Care Associates  Dallas Eye Care Associates  Dallas Eye Care Associates  Texas Retina Associates  Cornea Associates of Texas  Cornea Associates of Texas  Texas Retina Associates  Texas Retina Associates  Cornea Associates of Texas  Eye Plastic Surgery Associates  Cornea Associates of Texas  Eye Plastic Surgery Associates  Texas Retina Associates  Texas Retina Associates  Texas Retina Associates  Texas Retina Associates  Robert Eisenberg MD  Texas Ophthalmic Plastic Reconstructive & Orbital Surgery Associates  Texas Ophthalmic Plastic Reconstructive & Orbital Surgery Associates  Stephen E Webb MD PA  William Phelps MD  Richard May MD  George Allen Moninger MD  George Allen Moninger MD  Dr's Fagadau & Hawk MD LLP  Dr's Fagadau & Hawk MD LLP  MFA Ophthalmology  Pediatric Ophthalmology PA  Pediatric Ophthalmology PA  Pediatric Ophthalmology PA  Pediatric Ophthalmology PA  Southwest Eye Clinic  Carter Eye Center  James Bentley Jr. MD  Elizabeth Vaughan MD  Tennant Institute  Thomas J Russell MD  Key-Whitman Eye Center  Key-Whitman Eye Center  Key-Whitman Eye Center  Thomas J Russell MD  Thomas J Russell MD  Key-Whitman Eye Center  Key-Whitman Eye Center  Retina Institute of Texas PA McKinney, TexasUpcoming 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 McKinney
Nearby McKinney Hospitals *Medical Center of McKinney Wysong Campus Medical Center of McKinney Presbyterian Hospital of Allen Centennial Medical Center LifeCare Hospitals of Plano HEALTHSOUTH Plano Rehabilitation Hospital Medical Center of Plano Baylor Medical Center at Frisco Plano Specialty Hospital Baylor Regional Medical Center at Plano Presbyterian Hospital of Plano Methodist Richardson Regional Medical Center Regency Hospital of North Dallas Trinity Medical Center Baylor Medical Center at Garland Baylor Specialty Hospital Garland Lake Pointe Medical Center Green Oaks Hospital Kindred Hospital Dallas Medical City Children's Hospital Medical City Hospital Kindred Hospital Walnut Hill Presbyterian Hospital of Dallas RHD Memorial Medical Center Medical Center of Lewisville Doctors Hospital at White Rock Lake Kindred Hospital White Rock Irving Coppell Surgical Hospital Denton Regional Medical Center Timberlawn Mental Health System Children's Medical Center of Dallas Las Colinas Medical Center Presbyterian Hospital of Greenville Texas Specialty Hospital at Dallas Dallas Regional Medical Center Mary Shiels Hospital LifeCare Specialty Hospital of Dallas UT Southwestern Medical Center University Hospital St Paul UT Southwestern Medical Center Baylor Specialty Hospital Parkland Health & Hospital System Texas Scottish Rite Hospital for Children UT Southwestern Medical Center University Hospital Zale Lipshy Baylor Institute for Rehabilitation Baylor University Medical Center Baylor Jack & Jane Hamilton Heart & Vascular Hospital Wilson N Jones Medical Center Main Campus Glen Oaks Hospital Presbyterian Hospital of Denton Baylor Medical Center at Irving Methodist Dallas Medical Center Community Specialty Hospital Baylor Regional Medical Center at Grapevine 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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