Electroretinography Center - North Richland Hills, TX
North Richland Hills 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 North Richland Hills * Ophthalmology Associates  Ophthalmology Associates  Charley J Andrews III MD  Pediatric Eye Specialists  Texas Eye & Laser Center  Texas Eye & Laser Center  Thomas L Marvelli MD  Carl K Marling MD  Brian S Anding MD  Mayli Davis MD  Glaucoma Consultants of Texas  Ophthalmology Consultants PA  Key-Whitman Eye Center  Southwest Ophthalmology Associates PLLC  Humphrey Key-Whitman Eye Center  Humphrey Key-Whitman Eye Center  Texas Retina Associates  Texas Retina Associates  Hugo M Nue MD  Texas Retina Associates  Texas Retina Associates  Retina Consultants PA  Retina Consultants PA  Retina Consultants PA  Retina Consultants PA  Fort Worth Outpatient Clinic  Ophthalmology Associates  Ophthalmology Associates  Jonathan Cichocki MD  Laurie Boquet Dory MD  Advanced Glaucoma Center PA  Ophthalmology Associates  Ophthalmology Associates  Ophthalmology Associates  Ophthalmology Associates  Ophthalmology Associates  Huy M Tran MD  Ophthalmology Associates  Judson P Smith III MD  Harold Granek MD  Pediatric Eye Specialists  Pediatric Eye Specialists  Dan A Willis MD  John R Armstrong MD  North Texas Ophthalmic Plastic Surgery  North Texas Ophthalmic Plastic Surgery  UT Southwestern Ophthalmology Clinic  Texas Eyelid Center PA  Kassim Khan MD  Alliance Eye Care  Pediatric Opthalmology PA  Phillips Kirk Labor MD  Arlington Physicians Dept of Ophthalmology  Nirmal Saran MD  Kleiman Evangelista Eye Center  Kleiman Evangelista Eye Center  Barbara A Nugent MD PA  Vision Experts  Ray Chan MD PLLC  Retina Institute of Texas PA  Randy Montgomery MD  Retina Institute of Texas PA  Fort Worth Eye Associates  Fort Worth Eye Associates  Fort Worth Eye Associates  Vision Quest  Frank Cundari DO  Harry Rosenthal Jr. MD  Ophthalmology Associates  James Bentley Jr. MD  Brandenberg & Nethery MDs  Brandenberg & Nethery MDs  Brandenberg & Nethery MDs  Robert Chiang MD  Eyecare Associates of Texas PA  Eyecare Associates of Texas PA  Drs Dharma & Mahatma  Robert Eisenberg MD  Las Colinas Vision Center  Eyecare Associates of Texas PA  Eyecare Associates of Texas PA  Eyecare Associates of Texas PA  Tylock Eyecare & Laser Center  Roy R Whitaker MD  LaserCare Eye Center  Las Colinas Ophthalmology Association  LaserCare Eye Center  LaserCare Eye Center  David K Gregory MD  Tennant Institute  North Dallas Eye Associates  North Dallas Eye Associates  North Dallas Eye Associates  Eye Care Associates of Denton  George Allen Moninger MD  George Allen Moninger MD  Eyecare Associates of Texas PA  Advanced Eye Care Center  Garnett S Payseur MD  Namrata M Sayani MD North Richland Hills, 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 North Richland Hills
Nearby North Richland Hills Hospitals *North Hills Hospital Southwest Surgical Hospital Harris Methodist HEB Hospital Harris Methodist Springwood Arlington Rehabilitation Hospital Texas Health Memorial Hospital at Arlington Kindred Hospital Arlington Millwood Hospital HEALTHSOUTH Rehabilitation Hospital Harris Continued Care Hospital Harris Methodist Fort Worth JPS Health Network Cook Children's Medical Center Kindred Hospital Fort Worth Baylor Surgical Hospital at Fort Worth Plaza Medical Center of Fort Worth Baylor All Saints Medical Center at Fort Worth Baylor Regional Medical Center at Grapevine Baylor Medical Center at Trophy Club HEALTHSOUTH Rehabilitation Hospital of Arlington Medical Center of Arlington USMD Hospital at Arlington Baylor Medical Center at Irving LifeCare Hospitals of Fort Worth Las Colinas Medical Center HEALTHSOUTH City View Rehabilitation Hospital Regency Hospital of Fort Worth Baylor Medical Center at Southwest Fort Worth Kindred Hospital Fort Worth Southwest Harris Methodist Southwest Irving Coppell Surgical Hospital Harris Methodist Northwest Kindred Hospital Mansfield Huguley Memorial Medical Center Medical Center of Lewisville Methodist Mansfield Medical Center RHD Memorial Medical Center Texas Specialty Hospital at Dallas Children's Medical Center of Dallas LifeCare Specialty Hospital of Dallas UT Southwestern Medical Center University Hospital St Paul UT Southwestern Medical Center Parkland Health & Hospital System UT Southwestern Medical Center University Hospital Zale Lipshy Denton Regional Medical Center Renaissance Hospital Dallas Trinity Medical Center Methodist Dallas Medical Center Texas Scottish Rite Hospital for Children Methodist Charlton Medical Center Methodist Rehabilitation Hospital Select Specialty Hospital South Dallas Mary Shiels Hospital Hickory Trail Hopsital Regency Hospital of North Dallas Baylor Specialty Hospital Baylor Jack & Jane Hamilton Heart & Vascular Hospital Baylor University Medical Center Presbyterian Hospital of Denton Baylor Institute for Rehabilitation Medical City Children's Hospital Medical City Hospital Presbyterian Hospital of Plano Green Oaks Hospital Kindred Hospital Walnut Hill Presbyterian Hospital of Dallas Dallas VA Medical Center Baylor Regional Medical Center at Plano Kindred Hospital Dallas Baylor Medical Center at Frisco LifeCare Hospitals of Plano Plano Specialty Hospital Timberlawn Mental Health System Doctors Hospital at White Rock Lake Kindred Hospital White Rock 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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