Electroretinography Center - The Colony, TX
The Colony 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 Colony * Vista Ophthalmology Associates  Pediatric Ophthalmology PA  Lee Eye Surgery Clinic  Kim K Maale MD  North Dallas Eye Associates  North Dallas Eye Associates  North Dallas Eye Associates  Michelle L Brochner MD  Retina Specialists  Retina Specialists  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  William Boothe MD  Robert Scharf MD  Jacqueline Co MD PA  Tennant Institute  Ophthalmology Associates  George Allen Moninger MD  George Allen Moninger MD  Merhdad Mazaheri MD  Gordon H Newman MD  Gordon H Newman MD  Eye Care Texas  LaserCare Eye Center  Las Colinas Ophthalmology Association  Retina Institute of Texas PA  LaserCare Eye Center  LaserCare Eye Center  Retina Institute of Texas PA  Lyle R Teska MD  David K Gregory MD  Heritage Eye Center  Heritage Eye Center  Bob L Pansick MD  Craig D Smith MD  Rhufus Allen MD  Robert Eisenberg MD  Robert Tenery Jr. MD  Eye Care Associates of Denton  Glaucoma Associates of Texas  Glaucoma Associates of Texas  Glaucoma Associates of Texas  Glaucoma Associates of Texas  Glaucoma Associates of Texas  Craig Bolton MD  Vision Quest  Vision Quest  Vision Quest  Dallas Eye Care Associates  Dallas Eye Care Associates  Dallas Eye Care Associates  Dallas Eye Care Associates  Matthew Lippas 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  Pediatric Ophthalmology PA  Pediatric Ophthalmology PA  Dr's Fagadau & Hawk MD LLP  Pediatric Ophthalmology PA  Dr's Fagadau & Hawk MD LLP  MFA Ophthalmology  Advanced Eye Care Center  Pediatric Ophthalmology PA  Texas Vision & Laser Center  Drs Dharma & Mahatma  Texas Retina Associates  Cornea Associates of Texas  Cornea Associates of Texas  Texas Retina Associates  Texas Retina Associates  Cornea Associates of Texas  Texas Ophthalmic Plastic Reconstructive & Orbital Surgery Associates  Texas Ophthalmic Plastic Reconstructive & Orbital Surgery Associates  Las Colinas Vision Center  Eye Plastic Surgery Associates  Cornea Associates of Texas  Eye Plastic Surgery Associates  Texas Retina Associates  Texas Retina Associates  Texas Retina Associates  Texas Retina Associates  Stephen E Webb MD PA  Ophthalmology Consultants PA  Tylock Eyecare & Laser Center  Pediatric Opthalmology PA  Phillips Kirk Labor MD  Glaucoma Consultants of Texas  Alliance Eye Care  Roy R Whitaker MD  Family Vision Care  Garnett S Payseur MD The Colony, 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 The Colony
Nearby The Colony Hospitals *Baylor Medical Center at Frisco Regency Hospital of North Dallas Presbyterian Hospital of Plano Trinity Medical Center LifeCare Hospitals of Plano Centennial Medical Center Baylor Regional Medical Center at Plano Medical Center of Lewisville Plano Specialty Hospital HEALTHSOUTH Plano Rehabilitation Hospital Medical Center of Plano Methodist Richardson Regional Medical Center RHD Memorial Medical Center Denton Regional Medical Center Irving Coppell Surgical Hospital Presbyterian Hospital of Allen Green Oaks Hospital Las Colinas Medical Center Medical City Children's Hospital Medical City Hospital Medical Center of McKinney Kindred Hospital Dallas Medical Center of McKinney Wysong Campus Kindred Hospital Walnut Hill Presbyterian Hospital of Dallas Baylor Regional Medical Center at Grapevine Baylor Medical Center at Garland Baylor Specialty Hospital Garland Children's Medical Center of Dallas Texas Specialty Hospital at Dallas Presbyterian Hospital of Denton Baylor Medical Center at Irving LifeCare Specialty Hospital of Dallas UT Southwestern Medical Center University Hospital St Paul UT Southwestern Medical Center Baylor Medical Center at Trophy Club Parkland Health & Hospital System UT Southwestern Medical Center University Hospital Zale Lipshy Doctors Hospital at White Rock Lake Kindred Hospital White Rock Texas Scottish Rite Hospital for Children Mary Shiels Hospital Baylor Specialty Hospital Baylor University Medical Center Baylor Jack & Jane Hamilton Heart & Vascular Hospital Baylor Institute for Rehabilitation Timberlawn Mental Health System Harris Methodist HEB Hospital Harris Methodist Springwood Methodist Dallas Medical Center Lake Pointe Medical Center Southwest Surgical Hospital Renaissance Hospital Dallas North Hills Hospital Dallas Regional Medical Center Kindred Hospital Arlington Millwood Hospital Texas Health Memorial Hospital at Arlington Arlington Rehabilitation Hospital Dallas VA Medical Center HEALTHSOUTH Rehabilitation Hospital of Arlington Medical Center of Arlington Methodist Charlton Medical Center Methodist Rehabilitation Hospital Select Specialty Hospital South Dallas USMD Hospital at Arlington Hickory Trail Hopsital 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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