Electroretinography Center - Yucaipa, CA
Yucaipa 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 Yucaipa * Beaver Medical Group Yucaipa Valley  Beaver Medical Group Yucaipa Valley  Beaver Medical Group Redlands  Retina Consultants of Southern California  Donald Shearer MD  LLUHC Ophthalmology  LLUHC Ophthalmology  LLUHC Ophthalmology  LLUHC Ophthalmology  LLUHC Ophthalmology  LLUHC Ophthalmology  LLUHC Ophthalmology  LLUHC Ophthalmology  Eye Center  Inland Eye Institute  Inland Eye Institute  Inland Eye Institute  Edward J Puttre MD  Hemet Eye Medical & Surgical Center  California Eye Professionals  California Eye Professionals  Doheny Eye Center  Doheny Eye Center  Pabalan Eye Center  Riverside Eye Specialists  Riverside Eye Specialists  Riverside Eye Specialists  Robert S Herrick MD  David R McGrew MD  Riverside Medical Clinic  Riverside Medical Clinic  Retina Consultants of Southern California  Inland Valley Retina Medical Associates Inc  LoBue Laser & Eye Medical Center  Inland Valley Retina Medical Associates Inc  Khanna Institute of Lasik  Inland Valley Retina Medical Associates Inc  A M Palanca-Capistrano MD Inc  Valdez Eye Center  Tri-County Eye Institute  Milauskas Eye Institute  Milauskas Eye Institute  Milauskas Eye Institute  Milauskas Eye Institute  Milauskas Eye Institute  Milauskas Eye Institute  Milauskas Eye Institute  Milauskas Eye Institute  Vision Professionals  Vision Professionals  Pacific Eye Institute  Pacific Eye Institute  Pacific Eye Institute  Pacific Eye Institute  Pacific Eye Institute  Carl S Shibata MD  Pacific Eye Institute  Childrens Eye Institute  Childrens Eye Institute  Southern California Desert Retina Consultants  Southern California Desert Retina Consultants  Robert A Innocenzi MD  Claremont Eye Associates  Claremont Eye Associates  Claremont Eye Associates  Fallbrook Eye Surgery  Mark H Barak MD  California Laser Eye Associates  Dennis Chuck MD  Doheny Eye Institute  Doheny Eye Institute  Doheny Eye Institute  Doheny Eye Institute  Doheny Eye Institute  Doheny Eye Institute  Atlantis Eyecare  Atlantis Eyecare  Erik J Williams  John D Zdral MD John Esser MD  Arthur D Charap MD  Jan S Lukac MD  Wayne Martin MD  Advanced Eye Medical Group  Advanced Eye Medical Group  Eye Associates of Orange County  Eye Associates of Orange County  David Gwynn MD  Sheldon Nankin MD  David Gwynn MD  Orange County Retina Medical Group  Retina Associates of Orange County  Retina Associates of Orange County  Orange County Retina Medical Group  M Polly McKinstry MD  Jude J Santiago MD  John Cheng MD  Henry Cheng MD  William L McCarthy Jr. MD Inc  Harvard Eye Associates  Harvard Eye Associates Yucaipa, CaliforniaUpcoming Local Events2012-05-28
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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 Yucaipa
Nearby Yucaipa Hospitals *Redlands Community Hospital Patton State Hospital Loma Linda University Behavioral Medicine Center San Gorgonio Memorial Hospital Loma Linda University Medical Center East Campus VA Loma Linda Healthcare System Riverside County Regional Medical Center Loma Linda University Children's Hospital Loma Linda University Medical Center Moreno Valley Community Hospital St Bernardine Medical Center Community Hospital of San Bernardino Robert H Ballard Rehabilitation Hospital Arrowhead Regional Medical Center Mountains Community Hospital Bear Valley Community Hospital Vista Hospital of Riverside Riverside Community Hospital Hemet Valley Medical Center Kaiser Permanente Fontana Medical Center Menifee Valley Medical Center Parkview Community Hospital Medical Center Kaiser Permanente Riverside Medical Center Rancho Specialty Hospital Corona Regional Medical Center Rehabilitation Corona Regional Medical Center St Mary Medical Center Desert Regional Medical Center Inland Valley Medical Center Desert Valley Hospital San Antonio Community Hospital Kindred Hospital Ontario Rancho Springs 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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