Electroretinography Center - The Woodlands, TX
The Woodlands 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 The Woodlands * Conroe-Woodlands Eye Clinic  Conroe-Woodlands Eye Clinic  Greater Houston Digestive Disease Consultant  Greater Houston Digestive Disease Consultant  Houston Eye Associates  Greater Houston Digestive Disease Consultant  Conroe-Woodlands Eye Clinic  Houston Eye Associates  Houston Eye Associates  Houston Eye Associates  Houston Eye Associates  Edward E Shubert MD  Avery Eye Clinic  Avery Eye Clinic  Avery Eye Clinic  Avery Eye Clinic  Eye Physicians of North Houston  Eye Physicians of North Houston  Eye Physicians of North Houston  Aphado Eyecare  Tom H Sun MD PA  Tom H Sun MD PA  Houston Eye Associates  Retina & Vitreous of Texas  Gary Mason MD  1960 Eye Surgeons PA  1960 Eye Surgeons PA  1960 Eye Surgeons PA  Charles K Clark MD  Mann Eye Institute  Joseph A Zarzour MD  Houston Eye Associates  Houston Eye Associates  Northwest Eye Associates  Northwest Eye Associates  Quality EyeCare Clinic  Watkins Eye Center  Houston Eye Associates  Lyric Medical PA  Surgical Eye Associates  Surgical Eye Associates  Whitsett Vision Group  Whitsett Vision Group  Whitsett Vision Group  Eye Laser Specialists  Joel H Goffman MD  Houston Eye Associates  Houston Eye Associates  Houston Eye Associates  Houston Eye Associates  Houston Eye Associates  Saeid Abedin MD & Kattayoon Hashemi MD  Saeid Abedin MD & Kattayoon Hashemi MD  Alan Jarrett MD  Houston Eye & Laser Center  Houston Eye & Laser Center  Pediatric Ophthalmology of Houston  Houston Eye & Laser Center  International Eyecare Laser Center  International Eyecare Laser Center  Houston Eye Associates  Houston Eye Associates  Houston Eye Associates  Houston Eye Associates  Houston Eye Associates  Houston Eye Associates  Houston Eye Associates  Kelsey-Seybold Clinic West  Ophthalmic Plastic Surgery of Texas  Innad H Husaini MD  Downtown Eye Associates  Fernando Garcia MD & Associates  Lawrence A Wright MD  Mustapha Kibirige MD  Thuy K Nguyen MD  Plastic Eye Surgery Associates  Plastic Eye Surgery Associates  Mapp & Mapp Associates  Mapp & Mapp Associates  Eye Excellence  James H Krause MD  Warren Cross & Associates  Warren Cross & Associates  Warren Cross & Associates  Retina-Vitreous Associates  Retina-Vitreous Associates  Lucious Randle Jr. MD  Eye Center of Texas LLP  Eye Center of Texas LLP  Eye Center of Texas LLP  Eye Center of Texas LLP  University of Houston College of Ophthalmology  Robert Cizik Eye Clinic  Robert Cizik Eye Clinic  Robert Cizik Eye Clinic  Robert Cizik Eye Clinic  Robert Cizik Eye Clinic  Robert Cizik Eye Clinic  Robert Cizik Eye Clinic  Robert Cizik Eye Clinic The Woodlands, TexasUpcoming Local Events2012-05-26
2012-06-02
2012-06-16
2012-06-17
2012-06-22
2012-08-05
2012-10-07
2012-10-14
2012-10-27
2012-11-17
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 a visual field test?A visual field test is a method of measuring an individual's entire scope of vision, that is their central and peripheral (side) vision. Visual field testing actually maps the visual fields of each eye individually. The visual field test is a subjective examination, requiring the patient to understand the testing instructions, fully cooperate, and complete the entire test in order to provide useful information. What is a visual field test used for?Visual field testing is most frequently used to detect any signs of glaucoma damage to the optic nerve. In addition, visual field tests are useful for detection of central or peripheral retinal disease, eyelid conditions such as ptosis or drooping, optic nerve disease, and diseases affecting the visual pathways within the brain. The visual pathways carry information from the eye to the visual or occipital cortex in the brain, where this information is proces... Other Related Electroretinography ArticlesEmergency Contact for The Woodlands
Nearby The Woodlands Hospitals *Memorial Hermann The Woodlands Hospital Nexus Specialty Hospital Woodlands Campus St Luke's Community Medical Center The Woodlands Nexus Specialty Hospital Shenandoah Campus HEALTHSOUTH North Houston Rehabilitation Hospital Conroe Regional Medical Center Select Specialty Hospital Conroe HEALTHSOUTH Hospital of Houston Triumph Hospital Northwest Cypress Creek Hospital IntraCare North Hospital TOPS Surgical Specialty Hospital Houston Northwest Medical Center Tomball Regional Medical Center Triumph Hospital Tomball Methodist Willowbrook Hospital Memorial Hermann Northeast HEALTHSOUTH Humble Rehabilitation Hospital Kingwood Medical Center Cypress Fairbanks Medical Center Hospital Kindred Hospital Northwest North Cypress Medical Center Triumph Hospital North Houston Doctors Hospital Parkway Renaissance Hospital Houston Doctors Hospital of Tidwell Memorial Hermann Northwest Hospital Select Specialty Hospital Houston Heights Spring Branch Medical Center Lyndon B Johnson General Hospital Cleveland Regional Medical Center Select Specialty Hospital Houston West Twelve Oaks Medical Center River Oaks Campus Triumph Hospital Town & Country Memorial Hermann Memorial City Hospital Dubuis Hospital of Houston Triumph Hospital Houston Central St Joseph Medical Center Riverside General Hospital HEALTHSOUTH Hospital for Specialized Surgery Healthbridge Children's Hospital of Houston Park Plaza Hospital and Medical Center Plaza Specialty Hospital West Houston Medical Center CHRISTUS St Catherine Hospital Memorial Hermann Hospital Kindred Hospital Houston Select Specialty Hospital Houston Medical Center Ben Taub General Hospital The Methodist Hospital Cornerstone Hospital of Houston at Bellaire Texas Children's Hospital University of Texas Harris County Psychiatric Center West Oaks Hospital Memorial Herman The Institute for Rehabilitation & Research Shriners Hospitals for Children St Luke's Episcopal Hospital Harris Quentin Mease Community Hospital Michael E DeBakey VA Medical Center University of Texas MD Anderson Cancer Center Texas Orthopedic Hospital Memorial Hermann Katy Hospital Riveroaks Medical Center Sharpstown Campus University General Hospital The Woman's Hospital of Texas IntraCare Medical Center Hospital Memorial Hermann Southwest Hospital Triumph Hospital East Houston East Houston Regional Medical Center Harris County Hospital District Texas Specialty Hospital Kindred Hospital Bay Area 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. |
Suggested Reading on Electroretinography by Our Doctors
-
Related Diseases & Conditions
1 articles-
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.
-
Usher Syndrome
-
Medications
0 articles -
Procedures & Tests
1 articles -
Pictures, Images & Quizzes
0 articles -
Doctor's & Expert's Views
1 articles -
Health News
0 articles -
Health Features
0 articles
