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