Electroretinography Center - Santa Barbara, CA
Santa Barbara 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 Santa Barbara * Sansum Clinic Ophthalmology  Sansum Clinic Ophthalmology  Sansum Clinic Ophthalmology  California Retina Consultants  California Retina Consultants  Eye Surgical Medical Group  Roger Kohn MD  California Retina Consultants  California Retina Consultants  California Retina Consultants  Stuart R Winthrop MD  Marc A Lowe MD  Sansum Clinic Ophthalmology  Steven D Zelko MD  Paveloff Vision Center  California Eye Consultants  Wilson C Wu  Associated Eye Specialists Medical Group Inc  Miramar Eye Specialists  Miramar Eye Specialists  Miramar Eye Specialists  Miramar Eye Specialists  The Laser Eye Center of Ventura County  Miramar Eye Specialists  Steven D Chang MD Inc  Ventura Ophthalmology Medical Group  Jeffrey K Luttrull MD  Samuel A Bern MD  Spencer Eye Center  Spencer Eye Center  Frank Meronk Jr. MD  Sunshine Eye Services  Sanjay Logani MD  Coastal Eye Specialists  Coastal Eye Specialists  Kaiser Specialty Clinic  California Eye Consultants  Ventura Eye Institute  Steven W Dixon MD  Wallace S Marsh MD  Kendall-Shepard Eye Center  Kendall-Shepard Eye Center  Franz Michel MD  Lynn Eye Medical Group  Lynn Eye Medical Group  Lynn Eye Medical Group  Lynn Eye Medical Group  Conejo Simi Eye Medical Group  Conejo Simi Eye Medical Group  Conejo Simi Eye Medical Group  Conejo Simi Eye Medical Group  Conejo Simi Eye Medical Group  Limberg Eye Surgery  Limberg Eye Surgery  Shepard Eye Center  Shepard Eye Center  Shepard Eye Center  Norman J Hoffman MD Inc  Pacific Eye Surgeons  Pacific Eye Surgeons  Pacific Eye Surgeons  Pacific Eye Surgeons  Pacific Eye Surgeons  Pacific Eye Surgeons  Retinal Consultants Of Southern California  Darin Eye Center  Darin Eye Center  Bruce B Becker MD  George S Hoffman MD  Khanna Institute of Lasik  West Lake Eye & Skin Associates Inc  Harry Loo MD  Debra G Tennen MD  Ophthalmology Office  Davidorf Eye Group  Davidorf Eye Group  Retinal Consultants Of Los Angeles  Retinal Consultants Of Los Angeles  Marshall M Graditor MD  Ophthalmology Associates of the Valley  Ophthalmology Associates of the Valley  Michelle Reyes MD  Ophthalmology Associates of the Valley  Ophthalmology Associates of the Valley  Fritch Eye Care Medical Center  Empire Eye & Laser  Empire Eye & Laser  Gregory A Stainer MD  Kenneth J Arenson MD  Patrick D Keating MD  Limberg Eye Surgery  Limberg Eye Surgery  Brian R Gross MD  Triangle Eye Institute  Golden State Eye Center  The Valencia Eye Institute  Santa Clarita Valley Eye Center  Janet Chen MD  Empire Eye & Laser Center  Kai Wong MD Santa Barbara, CaliforniaUpcoming 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 Santa Barbara
Nearby Santa Barbara Hospitals *Cottage Rehabilitation Institute Goleta Valley Cottage Hospital Santa Barbara Cottage Hospital Ojai Valley Community Hospital Aurora Vista Del Mar Hospital Community Memorial Hospital Ventura County Medical Center Santa Ynez Valley Cottage Hospital St John's Regional 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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