Electroretinography Center - Anderson, IN
Anderson 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 Anderson * Anderson Center For Sight PC  Anderson Center For Sight PC  Donald M Perez MD LLC  Donald M Perez MD LLC  Hoosier Ophthalmology Associates  Hoosier Ophthalmology Associates  Muncie Eye Center  Muncie Eye Center  Thomas E Strayer MD  Ajit K Tiwari MD  Midwest Eye Institute  Vasilis Makris MD  Vision Center  Lakeview Eye Physicians  Eye Surgeons of Indiana  Eye Surgeons of Indiana  Eye Surgeons of Indiana  Eye Surgeons of Indiana  Eye Surgeons of Indiana  Eye Surgeons of Indiana  Community Eye Care  Community Eye Care  Comprehensive Eye Care  Uma D Chaluvadi MD  Klapper Eyelid & Facial Plastic Surgery  Abrams Eyecare Associates  Whitson Vision PC  Abrams Eyecare Associates  Abrams Eyecare Associates  Whitson Vision PC  Midwest Eye Institute  Community Eye Care  Midwest Eye Institute  Community Eye Care  Midwest Eye Institute  Midwest Eye Institute  Midwest Eye Institute  Gerald T Keener Jr. MD  Midwest Eye Institute  Midwest Eye Institute  Midwest Eye Institute  Midwest Eye Institute  Midwest Eye Institute  Midwest Eye Institute  Midwest Eye Institute  Midwest Eye Institute  Midwest Eye Institute  Midwest Eye Institute  Howard Brumbaugh MD  Hua Gao MD  Eye Associates LLC  Eye Associates LLC  Retina Institute  David V Poer MD  Corneal Consultants of Indiana  Associated Vitreoretinal & Uveitis Consultants  Associated Vitreoretinal & Uveitis Consultants  Linda Fundenberger MD  Adam W Brazus MD  20/20 Eye Physicians of Indiana PC  20/20 Eye Physicians of Indiana PC  20/20 Eye Physicians of Indiana PC  Washington Eye Center  Washington Eye Center  Elliott A Yolles MD  Eye Physicians  Eye Physicians  Howard M Alig MD  Eye Specialists of Indiana  Center for Sight  Center for Sight  I U Eye Care  David A Plager MD  Indiana University Medical Center Ophthalmology  Indiana University Medical Center Ophthalmology  Indiana University Medical Center Ophthalmology  Indiana University Medical Center Ophthalmology  Indiana University Medical Center Ophthalmology  Indiana University Medical Center Ophthalmology  Indiana University Medical Center Ophthalmology  Indiana University Medical Center Ophthalmology  Indiana University Medical Center Ophthalmology  20/20 Eye Physicians of Indiana PC  Indiana Eye Clinic  Indiana Eye Clinic  Indiana Eye Clinic  Indiana Eye Clinic  Southside Eye Associates  Thierry H Wilbrandt MD  Stephen J Massicotte MD PC  Daniel R Whipple MD  Daniel R Whipple MD  Max A Henry MD  Paul R Honan MD  Drs Goodell & Zauel  Drs Goodell & Zauel  Parkside Opthamology  Pankratz Eye Institute  Douglas R Wilson MD  Columbus Eye Center Anderson, IndianaUpcoming Local Events2012-06-17
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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 Anderson
Nearby Anderson Hospitals *Saint John's Health System Community Hospital Anderson St Vincent Mercy Hospital Ball Memorial Hospital Riverview Hospital Henry County Memorial Hospital Hancock Regional Hospital Tipton Hospital Community Hospital North The Indiana Heart Hospital St Vincent Carmel Hospital Clarian North Medical Center St Vincent Heart Center of Indiana Blackford County Hospital St Vincent Pediatric Rehabilitation Center Community Hospital East St Vincent Children's Hospital St Vincent Indianapolis Hospital St Vincent Women's Hospital St Vincent Seton Specialty Hospital VA Northern Indiana Health Care System Marion Campus Marion General Hospital Howard Regional Health System Main Campus Clarian Health Methodist Hospital Indiana Orthopaedic Hospital Select Specialty Hospital Beech Grove St Francis Hospital Beech Grove Wishard Health Services Larue D Carter Memorial Hospital Clarian Health IU Medical Center Riley Hospital for Children Westview Hospital Richard L Roudebush VA Medical Center 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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