Electroretinography Center - Houston, TX
Houston 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 Houston * Downtown Eye Associates  Fernando Garcia MD & Associates  Mustapha Kibirige MD  Thuy K Nguyen MD  Eye Excellence  Mann Eye Institute  Retina-Vitreous Associates  Retina-Vitreous Associates  University of Houston College of Ophthalmology  Lucious Randle Jr. MD  Robert Cizik Eye Clinic  Robert Cizik Eye Clinic  Robert Cizik Eye Clinic  Robert Cizik Eye Clinic  Robert Cizik Eye Clinic  Robert Cizik Eye Clinic  Houston Eye & Laser Center  Robert Cizik Eye Clinic  Robert Cizik Eye Clinic  Robert Cizik Eye Clinic  Robert Cizik Eye Clinic  Houston Eye Associates  Plastic Eye Surgery Associates  Plastic Eye Surgery Associates  Watkins Eye Center  Baylor Eye Consultants  Vitreoretinal Consultants  Baylor Eye Consultants  Vitreoretinal Consultants  Alkek Eye Center  Michael E Debakey VA Medical Center  Vitreoretinal Consultants  Baylor Eye Consultants  Baylor Eye Consultants  Vitreoretinal Consultants  Baylor Eye Consultants  Baylor Eye Consultants  Vitreoretinal Consultants  Baylor Eye Consultants  Houston Eye Associates  Lyric Medical PA  UT MD Anderson Cancer Center Ophthalmology  Medical Center Ophthalmology  UT MD Anderson Cancer Center Ophthalmology  Medical Center Ophthalmology  UT MD Anderson Cancer Center Ophthalmology  Medical Center Ophthalmology  Baylor Eye Consultants  Baylor Eye Consultants  Baylor Eye Consultants  Baylor Eye Physicians & Surgeons  Baylor Eye Consultants  Baylor Eye Consultants  Baylor Eye Consultants  Baylor Eye Consultants  Baylor Eye Consultants  Baylor Eye Consultants  Baylor Eye Consultants  Baylor Eye Consultants  Baylor Eye Consultants  James H Krause MD  Houston Eye Associates  Houston Eye Associates  Lawrence A Wright MD  Judith T Feigon MD  Houston Eye Associates  Houston Eye Associates  Houston Eye Associates  Houston Eye Associates  Houston Eye Associates  Houston Eye Associates  Houston Eye Associates  Houston Eye Associates  Houston Eye Associates  Houston Eye Associates  Houston Eye Associates  Houston Eye Associates  Kelsey-Seybold Main Campus Ophthalmology  Houston Eye Associates  Retina & Vitreous of Texas  Houston Eye Associates  Houston Eye Associates  Houston Eye Associates  Kelsey-Seybold Clinic  Retina & Vitreous of Texas  Houston Eye Associates  Houston Eye Associates  Houston Eye Associates  Houston Eye Associates  Houston Eye Associates  Retina & Vitreous of Texas  Houston Eye Associates  Houston Eye Associates  Retina & Vitreous of Texas  Houston Eye Associates  Houston Eye Associates  Kelsey-Seybold Main Campus Ophthalmology  Houston Eye Associates  Northwest Eye Associates  Northwest Eye Associates Houston, TexasRated as a beta world city, Houston's economy has a broad industrial base in the energy, manufacturing, aeronautics, transportation, and health care sectors and is a leading center for building oilfield equipment; only New York City is home to more Fortune 500 headquarters in the city limits. The Port of Houston ranks first in the United States in international waterborne tonnage handled and second in total cargo tonnage handled. The city has a population from various ethnic and religious backgrounds and a large and growing international community. It is home to many cultural institutions and exhibits - attracting more than 7 million visitors a year to the Houston Museum District. Houston has an active visual and performing arts scene in the Theater District and is one of few U.S. cities that offer year-round resident companies in all major performing arts. Upcoming 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 Houston
Nearby Houston Hospitals *Dubuis Hospital of Houston St Joseph Medical Center Triumph Hospital Houston Central Riverside General Hospital HEALTHSOUTH Hospital for Specialized Surgery Park Plaza Hospital and Medical Center Plaza Specialty Hospital University of Texas Harris County Psychiatric Center Harris Quentin Mease Community Hospital Memorial Hermann Hospital Ben Taub General Hospital Select Specialty Hospital Houston Heights Kindred Hospital Houston Select Specialty Hospital Houston Medical Center Memorial Herman The Institute for Rehabilitation & Research The Methodist Hospital Michael E DeBakey VA Medical Center Texas Children's Hospital St Luke's Episcopal Hospital University of Texas MD Anderson Cancer Center Shriners Hospitals for Children Texas Orthopedic Hospital University General Hospital The Woman's Hospital of Texas IntraCare Medical Center Hospital Lyndon B Johnson General Hospital Memorial Hermann Northwest Hospital Harris County Hospital District Texas Specialty Hospital Doctors Hospital of Tidwell Doctors Hospital Parkway Cornerstone Hospital of Houston at Bellaire Renaissance Hospital Houston Triumph Hospital North Houston Twelve Oaks Medical Center River Oaks Campus West Oaks Hospital Spring Branch Medical Center Select Specialty Hospital Houston West Riveroaks Medical Center Sharpstown Campus Memorial Hermann Southwest Hospital Memorial Hermann Memorial City Hospital Kindred Hospital Bay Area East Houston Regional Medical Center Triumph Hospital Town & Country Healthbridge Children's Hospital of Houston Bayshore Medical Center Triumph Hospital East Houston Vista Medical Center Hospital of America West Houston Medical Center Memorial Hermann Southeast Hospital HEALTHSOUTH Humble Rehabilitation Hospital Memorial Hermann Northeast Cypress Fairbanks Medical Center Hospital Houston Northwest Medical Center Methodist Willowbrook Hospital TOPS Surgical Specialty Hospital Kindred Hospital Northwest IntraCare North Hospital Cypress Creek Hospital Triumph Hospital Northwest HEALTHSOUTH Hospital of Houston North Cypress Medical Center Triumph Hospital Southwest CHRISTUS St Catherine Hospital Methodist Sugar Land Hospital Triumph Hospital Clear Lake Clear Lake Regional Medical Center Clear Lake Rehabilitation Hospital Cornerstone Hospital of Houston at Clearlake Memorial Hermann Sugar Land Hospital Kingwood Medical Center CHRISTUS St John Hospital San Jacinto Methodist Hospital Garth Rd Memorial Hermann Katy Hospital San Jacinto Methodist Hospital Alexander Campus 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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