Electroretinography Center - Sugar Land, TX
Sugar Land 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 Sugar Land * Edward K Chan MD  Todays Vision  Houston Eye Associates  Houston Eye Associates  Sugarland Eye & Laser  Lone Star Eye Care  Houston Eye Associates  Houston Eye Associates  Lone Star Eye Care  Houston Eye Associates  Houston Eye Associates  Texas Eye Institute  Texas Eye Institute  Texas Eye Institute  Texas Eye Institute  Texas Eye Institute  Texas Eye Institute  Texas Eye Institute  Texas Eye Institute  Texas Eye Institute  Houston Retina Associates  Houston Eye Associates  Eye Physicians of West Houston  Harrisburg Eye Clinic  Houston Retina Associates  Houston Eye Associates  Gary Mason MD  Shirley Mathew MD  Paul M Scott MD PA  Eye Optical  Mapp & Mapp Associates  Mapp & Mapp Associates  Holladay Lasik Institute  Bellaire & Katy Eye Consultants  Houston Eye Associates  International Eyecare Laser Center  International Eyecare Laser Center  Ophthalmic Plastic Surgery of Texas  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  Houston Eye Associates  Houston Eye Associates  Retina & Vitreous of Texas  Houston Eye Associates  Houston Eye Associates  Houston Eye Associates  Retina Specialists of Houston  Retina Specialists of Houston  Retina Specialists of Houston  Warren Cross & Associates  Warren Cross & Associates  Warren Cross & Associates  Eye Center of Texas LLP  Eye Center of Texas LLP  Eye Center of Texas LLP  Eye Center of Texas LLP  Kelsey-Seybold Clinic West  Houston Eye Associates  Houston Eye Associates  Houston Eye Associates  Houston Eye Associates  Houston Eye Associates  Houston Eye Associates  Houston Eye Associates  Houston Eye Associates  Joel H Goffman MD  Eye Laser Specialists  Surgical Eye Associates  Surgical Eye Associates  Whitsett Vision Group  Whitsett Vision Group  Whitsett Vision Group  Kelsey-Seybold Clinic  James H Krause MD  Kelsey-Seybold Main Campus Ophthalmology  Kelsey-Seybold Main Campus Ophthalmology  Houston Eye Associates  Retina & Vitreous of Texas  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  Retina & Vitreous of Texas  Houston Eye Associates  Lawrence A Wright MD  Judith T Feigon MD  Zimmerman Medical Clinic  Plastic Eye Surgery Associates  Plastic Eye Surgery Associates  Baylor Eye Consultants Sugar Land, 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 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 Sugar Land
Nearby Sugar Land Hospitals *Triumph Hospital Southwest Methodist Sugar Land Hospital Memorial Hermann Sugar Land Hospital Memorial Hermann Southwest Hospital West Houston Medical Center Riveroaks Medical Center Sharpstown Campus Healthbridge Children's Hospital of Houston West Oaks Hospital Cornerstone Hospital of Houston at Bellaire Memorial Hermann Memorial City Hospital OakBend Medical Center Triumph Hospital Town & Country Select Specialty Hospital Houston West Twelve Oaks Medical Center River Oaks Campus CHRISTUS St Catherine Hospital Texas Orthopedic Hospital IntraCare Medical Center Hospital University General Hospital The Woman's Hospital of Texas Shriners Hospitals for Children Harris County Hospital District Spring Branch Medical Center Texas Children's Hospital The Methodist Hospital St Luke's Episcopal Hospital Kindred Hospital Houston Select Specialty Hospital Houston Medical Center University of Texas MD Anderson Cancer Center Memorial Herman The Institute for Rehabilitation & Research Memorial Hermann Hospital Ben Taub General Hospital Michael E DeBakey VA Medical Center Park Plaza Hospital and Medical Center Plaza Specialty Hospital University of Texas Harris County Psychiatric Center Memorial Hermann Katy Hospital Harris Quentin Mease Community Hospital Triumph Hospital Houston Central HEALTHSOUTH Hospital for Specialized Surgery Riverside General Hospital Memorial Hermann Northwest Hospital St Joseph Medical Center Select Specialty Hospital Houston Heights Dubuis Hospital of Houston Texas Specialty Hospital Doctors Hospital of Tidwell Doctors Hospital Parkway Triumph Hospital North Houston Cypress Fairbanks Medical Center Hospital North Cypress Medical Center Kindred Hospital Northwest Lyndon B Johnson General Hospital Renaissance Hospital Houston Methodist Willowbrook Hospital Memorial Hermann Southeast Hospital Kindred Hospital Bay Area Bayshore Medical Center Vista Medical Center Hospital of America East Houston Regional Medical Center Houston Northwest Medical Center TOPS Surgical Specialty Hospital Cypress Creek Hospital HEALTHSOUTH Hospital of Houston IntraCare North Hospital Clear Lake Rehabilitation Hospital Cornerstone Hospital of Houston at Clearlake Triumph Hospital Clear Lake Triumph Hospital East Houston Triumph Hospital Northwest Clear Lake Regional Medical Center HEALTHSOUTH Humble Rehabilitation Hospital CHRISTUS St John Hospital Tomball Regional Medical Center Triumph Hospital Tomball Memorial Hermann Northeast 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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