Electroretinography Center - Pasadena, TX
Pasadena 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 Pasadena * Bayshore Eye Associates  Bayshore Eye Associates  Coastal Eye Associates  Pasadena Eye Associates  Pasadena Ophthalmology Clinic  Eye Center of Texas LLP  Dr Garcia & Associates  Daniel Schapira MD  Harrisburg Eye Clinic  Prabha Bhalla MD  Bayshore Eye Associates  Houston Eye Associates  University of Houston College of Ophthalmology  Coastal Eye Associates  Coastal Eye Associates  Coastal Eye Associates  Coastal Eye Associates  Houston Retina Associates  Houston Retina Associates  Mustapha Kibirige MD  Downtown Eye Associates  Quality EyeCare Clinic  Thuy K Nguyen MD  Michael E Debakey VA Medical Center  Retina-Vitreous Associates  Retina-Vitreous Associates  Mann Eye Institute  Lucious Randle Jr. MD  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  Eye Excellence  UT MD Anderson Cancer Center Ophthalmology  UT MD Anderson Cancer Center Ophthalmology  UT MD Anderson Cancer Center Ophthalmology  Robert Cizik Eye Clinic  Robert Cizik Eye Clinic  Robert Cizik Eye Clinic  Robert Cizik Eye Clinic  Robert Cizik Eye Clinic  Houston Eye Associates  Robert Cizik Eye Clinic  Houston Eye & Laser Center  Robert Cizik Eye Clinic  Robert Cizik Eye Clinic  Robert Cizik Eye Clinic  Robert Cizik Eye Clinic  Vitreoretinal Consultants  Baylor Eye Consultants  Vitreoretinal Consultants  Alkek Eye Center  Vitreoretinal Consultants  Baylor Eye Consultants  Baylor Eye Consultants  Baylor Eye Consultants  Vitreoretinal Consultants  Baylor Eye Consultants  Baylor Eye Consultants  Vitreoretinal Consultants  Baylor Eye Consultants  Medical Center Ophthalmology  Zimmerman Medical Clinic  Medical Center Ophthalmology  Medical Center Ophthalmology  Baylor Eye Consultants  Judith T Feigon MD  Houston Eye Associates  Houston Eye Associates  Houston Eye Associates  Houston Eye Associates  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  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 Pasadena, TexasUpcoming 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 Pasadena
Nearby Pasadena Hospitals *Kindred Hospital Bay Area Bayshore Medical Center Vista Medical Center Hospital of America East Houston Regional Medical Center Triumph Hospital East Houston Texas Specialty Hospital Memorial Hermann Southeast Hospital Harris Quentin Mease Community Hospital Riverside General Hospital HEALTHSOUTH Hospital for Specialized Surgery Lyndon B Johnson General Hospital University of Texas Harris County Psychiatric Center St Joseph Medical Center Triumph Hospital Clear Lake Clear Lake Regional Medical Center Clear Lake Rehabilitation Hospital Cornerstone Hospital of Houston at Clearlake Dubuis Hospital of Houston Harris County Hospital District Michael E DeBakey VA Medical Center Park Plaza Hospital and Medical Center Plaza Specialty Hospital CHRISTUS St John Hospital Ben Taub General Hospital Triumph Hospital Houston Central Memorial Herman The Institute for Rehabilitation & Research Memorial Hermann Hospital University of Texas MD Anderson Cancer Center St Luke's Episcopal Hospital IntraCare Medical Center Hospital Kindred Hospital Houston The Methodist Hospital Select Specialty Hospital Houston Medical Center University General Hospital The Woman's Hospital of Texas Texas Children's Hospital Shriners Hospitals for Children Texas Orthopedic Hospital San Jacinto Methodist Hospital Garth Rd Select Specialty Hospital Houston Heights Renaissance Hospital Houston San Jacinto Methodist Hospital Alexander Campus Triumph Hospital Baytown Memorial Hermann Northwest Hospital Cornerstone Hospital of Houston at Bellaire Doctors Hospital of Tidwell Doctors Hospital Parkway Triumph Hospital North Houston West Oaks Hospital Riveroaks Medical Center Sharpstown Campus Twelve Oaks Medical Center River Oaks Campus Memorial Hermann Southwest Hospital Spring Branch Medical Center Select Specialty Hospital Houston West HEALTHSOUTH Humble Rehabilitation Hospital Memorial Hermann Northeast Memorial Hermann Memorial City Hospital Healthbridge Children's Hospital of Houston Triumph Hospital Town & Country Mainland Medical Center West Houston Medical Center Kingwood Medical Center Houston Northwest Medical Center TOPS Surgical Specialty Hospital IntraCare North Hospital Triumph Hospital Southwest Triumph Hospital Northwest Cypress Creek Hospital HEALTHSOUTH Hospital of Houston Methodist Sugar Land Hospital Memorial Hermann Sugar Land Hospital Methodist Willowbrook Hospital Cypress Fairbanks Medical Center Hospital Kindred Hospital Northwest North Cypress 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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