Electroretinography Center - Round Rock, TX
Round Rock 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 Round Rock * Eye Associates of Central Texas  Eye Associates of Central Texas  Eye Associates of Central Texas  Eye Associates of Central Texas  Eye Associates of Central Texas  Eye Associates of Central Texas  Sean C Grinovich MD  Austin Diagnostic Clinic Opthalmology  Austin Diagnostic Clinic Opthalmology  Hill Country Eye Center  Hill Country Eye Center  Hill Country Eye Center  Hill Country Eye Center  Michelle Berger MD  Northwest Eye Clinic  Austin Eye Clinic  Austin Eye Clinic  B David Brent MD  Austin Pediatric Ophthalmology  Texan Eye Care  B David Brent MD  Texan Eye Care  Eye Center Inc  James G Kalpaxis MD  Eye Institute of Austin  Eye Institute of Austin  Eye Institute of Austin  Eye Institute of Austin  Eye Institute of Austin  Eye Institute of Austin  Eyes of Texas Laser Center  Robert A Laibovitz MD  Eye Clinic of Austin  Texan Eye Care  Sam N Key III MD  Scott & White Georgetown Clinic  Eye Physicians of Austin  Eye Physicians of Austin  Eye Physicians of Austin  Eye Physicians of Austin  Eye Physicians of Austin  Eye Physicians of Austin  Quintin J Smith MD  Brian B Berger MD PA  Texas Oculoplastic Consultants  Austin Retina Associates  Austin Retina Associates  Glaucoma Institute  O B Jackson Jr. MD  Austin Retina Associates  Childrens Eye Center  Austin Retina Associates  Glaucoma Institute  Texas Oculoplastic Consultants  Childrens Eye Center  Texas Oculoplastic Consultants  Texas Oculoplastic Consultants  Provista Eye Clinic  Westlake Eye Specialists  Westlake Eye Specialists  Texan Eye Care  Texan Eye Care  Texan Eye Care  Texan Eye Care  Texan Eye Care  Texan Eye Care  Howerton Eye Clinic  Howerton Eye Clinic  Austin VA OP Clinic  South Austin Eye Clinic  Peter H Broberg MD & Associates PA  Peter H Broberg MD & Associates PA  Peter H Broberg MD & Associates PA  Richard Briggs MD  Texan Eye Care  Kirby Eye Center  Gerard Marten-Ellis MD  Eye Care Institute  Joseph A Hudson Jr. MD  Gorden Eye Associates  King's Daughters Clinic of Central Texas  Scott & White Temple Ophthalmology  Scott & White Temple Ophthalmology  Scott & White Temple Ophthalmology  Scott & White Temple Ophthalmology  Scott & White Temple Ophthalmology  Scott & White Temple Ophthalmology  Scott & White Temple Ophthalmology  Scott & White Temple Ophthalmology  Central Texas Eye Center  Central Texas Eye Center  New Braunfels Vision Center  David Way MD  W Darrell Willerson Jr. MD  Eye Associates  Eye Associates  Fleming Eye Care  Fleming Eye Care  Scott & White Clinic in Waco  Central Texas Eye Clinic Round Rock, TexasUpcoming Local Events2012-06-06
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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 Round Rock
Nearby Round Rock Hospitals *St David's Round Rock Medical Center Scott & White University Medical Campus Cedar Park Regional Medical Center Seton Northwest Hospital St David's Georgetown Hospital North Austin Medical Center HEALTHSOUTH Surgical Hospital of Austin Dell Children's Medical Center of Central Texas Cornerstone Hospital of Austin Austin State Hospital Heart Hospital of Austin Seton Medical Center Austin Seton Shoal Creek Hospital St David's Medical Center Austin Lakes Hospital Cornerstone Hospital of Austin at St David's St David's Rehabilitation Center Seton Medical Center Williamson University Medical Center Brackenridge HEALTHSOUTH Rehabilitation Hospital of Austin Johns Community Hospital Austin Surgical Hospital St David's South Austin Hospital The Oaks Treatment Center Texas NeuroRehab Center Seton Southwest Healthcare Center Lakeside Hospital at Bastrop 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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