Electroretinography Center - Allen, TX
Allen 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 Allen * Heritage Eye Center  Heritage Eye Center  Michelle L Brochner MD  Texas Vision & Laser Center  Eye Care Texas  Robert Scharf MD  William Boothe MD  Drs Frazee Passmore Swanson & Ahmad  Drs Frazee Passmore Swanson & Ahmad  Eye Surgery of Texas  Joel Leffler MD  Drs Frazee Passmore Swanson & Ahmad  Drs Frazee Passmore Swanson & Ahmad  Jacqueline Co MD PA  Lyle R Teska MD  Merhdad Mazaheri MD  Vista Ophthalmology Associates  Retina Specialists  Retina Specialists  North Dallas Eye Associates  North Dallas Eye Associates  North Dallas Eye Associates  Ophthalmology Associates  Pediatric Ophthalmology PA  Family Vision Care  Kim K Maale MD  Garland Opthalmology Center  Garland Opthalmology Center  Garland Opthalmology Center  Shelby A Wyll MD  Craig D Smith MD  Bob L Pansick MD  Rhufus Allen MD  Robert Tenery Jr. MD  Gordon H Newman MD  Gordon H Newman MD  Glaucoma Associates of Texas  Glaucoma Associates of Texas  Glaucoma Associates of Texas  Glaucoma Associates of Texas  Glaucoma Associates of Texas  Lee Eye Surgery Clinic  Craig Bolton MD  Aubry Abramson MD  Bert Bryan MD  Linda L Burk MD  Dennis B Kay MD  David W Meltzer MD  James H Merritt MD  Karen B Saland MD  Vision Quest  Dallas Eye Care Associates  Vision Quest  Matthew Lippas MD  Vision Quest  Dallas Eye Care Associates  Dallas Eye Care Associates  Dallas Eye Care Associates  Texas Retina Associates  Cornea Associates of Texas  Cornea Associates of Texas  Texas Retina Associates  Texas Retina Associates  Cornea Associates of Texas  Eye Plastic Surgery Associates  Cornea Associates of Texas  Eye Plastic Surgery Associates  Texas Retina Associates  Texas Retina Associates  Texas Retina Associates  Texas Retina Associates  Robert Eisenberg MD  Texas Ophthalmic Plastic Reconstructive & Orbital Surgery Associates  Texas Ophthalmic Plastic Reconstructive & Orbital Surgery Associates  Stephen E Webb MD PA  William Phelps MD  George Allen Moninger MD  Dr's Fagadau & Hawk MD LLP  Dr's Fagadau & Hawk MD LLP  Richard May MD  George Allen Moninger MD  MFA Ophthalmology  Pediatric Ophthalmology PA  Pediatric Ophthalmology PA  Pediatric Ophthalmology PA  Pediatric Ophthalmology PA  Carter Eye Center  Southwest Eye Clinic  James Bentley Jr. MD  Elizabeth Vaughan MD  Retina Institute of Texas PA  Thomas J Russell MD  Key-Whitman Eye Center  Key-Whitman Eye Center  Key-Whitman Eye Center  Thomas J Russell MD  Retina Institute of Texas PA  Thomas J Russell MD  Retina Institute of Texas PA  Tennant Institute Allen, 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 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 Allen
Nearby Allen Hospitals *Presbyterian Hospital of Allen Medical Center of McKinney Centennial Medical Center HEALTHSOUTH Plano Rehabilitation Hospital Medical Center of Plano Medical Center of McKinney Wysong Campus LifeCare Hospitals of Plano Plano Specialty Hospital Baylor Regional Medical Center at Plano Methodist Richardson Regional Medical Center Baylor Medical Center at Frisco Presbyterian Hospital of Plano Regency Hospital of North Dallas Baylor Medical Center at Garland Baylor Specialty Hospital Garland Trinity Medical Center Green Oaks Hospital Kindred Hospital Dallas Medical City Children's Hospital Medical City Hospital Lake Pointe Medical Center Kindred Hospital Walnut Hill Presbyterian Hospital of Dallas RHD Memorial Medical Center Doctors Hospital at White Rock Lake Kindred Hospital White Rock Medical Center of Lewisville Irving Coppell Surgical Hospital Children's Medical Center of Dallas Timberlawn Mental Health System Texas Specialty Hospital at Dallas Las Colinas Medical Center Mary Shiels Hospital LifeCare Specialty Hospital of Dallas UT Southwestern Medical Center University Hospital St Paul UT Southwestern Medical Center Parkland Health & Hospital System Texas Scottish Rite Hospital for Children UT Southwestern Medical Center University Hospital Zale Lipshy Baylor Specialty Hospital Baylor Institute for Rehabilitation Baylor University Medical Center Baylor Jack & Jane Hamilton Heart & Vascular Hospital Dallas Regional Medical Center Baylor Medical Center at Irving Denton Regional Medical Center Methodist Dallas Medical Center Baylor Regional Medical Center at Grapevine Renaissance Hospital Dallas Dallas VA Medical Center Presbyterian Hospital of Denton Baylor Medical Center at Trophy Club Presbyterian Hospital of Greenville Harris Methodist HEB Hospital Harris Methodist Springwood Methodist Rehabilitation Hospital Methodist Charlton Medical Center Renaissance Hospital Terrell Select Specialty Hospital South Dallas Glen Oaks Hospital Hickory Trail Hopsital Terrell State Hospital Southwest Surgical Hospital 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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