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