Electroretinography Center - Provo, UT
Provo 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 Provo * Retina & Vitreous Surgeons LLC  Utah Valley Eye Center  Utah Valley Eye Center  Retina & Vitreous Surgeons LLC  Utah Valley Eye Center  Utah Valley Eye Center  Stephen L Donaldson MD  Excel Eye Center of Provo  Excel Eye Center of Provo  Excel Eye Center of Provo  Excel Eye Center of Provo  Excel Eye Center of Provo  Larry Noble, MD, MPH  Cataract & Lasik Center of Utah  Excel Eye Center of Provo  Excel Eye Center of American Fork  Excel Eye Center of Provo  Alta View Care Center  Alta View Care Center  Salt Lake Clinic Ophthalmology  Salt Lake Clinic Ophthalmology  Stella Chou MD  Hoopes Vision  Moran Eye Center  John B Alder MD  John B Alder MD  David A Spencer MD  Jordan Valley Eye Specialist  Ungricht Eye Associates  N Branson Call MD  Rocky Mountain Eye Care Associates LLC  Rocky Mountain Retina Consultants  Rocky Mountain Eye Care Associates LLC  Rocky Mountain Eye Care Associates LLC  Rocky Mountain Eye Care Associates LLC  Corey A Miller MD PC  The Eye Institute of Utah  The Eye Institute of Utah  Salt Lake Eye Associates  Salt Lake Eye Associates  Michael F Pingree MD  Michael F Pingree MD  Oculoplastic Surgery Inc  Robert M Christiansen MD  Moran Eye Center  Moran Eye Center  Moran Eye Center  Moran Eye Center  Moran Eye Center  Moran Eye Center  Moran Eye Center  Moran Eye Center  Moran Eye Center  Moran Eye Center  Moran Eye Center  Moran Eye Center  Moran Eye Center  Moran Eye Center  Moran Eye Center  Moran Eye Center  Moran Eye Center  Moran Eye Center  Moran Eye Center  Moran Eye Center  Moran Eye Center  Moran Eye Center  Moran Eye Center  Moran Eye Center  Moran Eye Center  Robert W Wing MD  Mt Ogden Eye Center LLC  Mt Ogden Eye Center LLC  Insight Eye Specialists  Tanner Clinic  Insight Eye Specialists  Insight Eye Specialists  Mountain View Eye Center  Mountain View Eye Center  Clayson Eye Center  Mt Ogden Eye Center LLC  Mt Ogden Eye Center LLC  Country Hills Eye Center  Country Hills Eye Center  Country Hills Eye Center  Country Hills Eye Center  Country Hills Eye Center  Jeffrey E Hansen MD  Jeffrey E Hansen MD  Brigham Eye Specialists  Brigham Eye Specialists Provo, UtahUpcoming Local Events2012-06-09
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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 Provo
Nearby Provo Hospitals *Utah Valley Regional Medical Center Utah State Hospital Orem Community Hospital Timpanogos Regional Hospital American Fork Hospital Mountain View Hospital Heber Valley Medical Center Alta View Hospital HEALTHSOUTH Rehabilitation Hospital of Utah Highland Ridge Hospital Jordan Valley Medical Center Intermountain Medical Center St Mark's 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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