Electroretinography Center - Bellevue, WA
Bellevue 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 Bellevue * Eye Clinic of Bellevue  Eye Clinic of Bellevue  Eye Clinic of Bellevue  Retina Consultants of Seattle  Northwest Vision Institute  Eye Clinic of Bellevue  Eye Clinic of Bellevue  Eye Clinic of Bellevue  Eye Clinic of Bellevue  Northwest Vision Institute  Howard S Barnebey MD  Medina Eye & Optical  Eastside Eye Consultants  Overlake Eyecare PS  Allure Laser Center & MediSpa  Allure Laser Center & MediSpa  Washington Pacific Eye Associates  Group Health Eastside Primary Care Clinic  The Children's Eye Doctors  Eye Associates Northwest  Eye Associates Northwest  Eye Associates Northwest  Children's Eye Care PLLC  Pacific Medical Centers  Pacific Medical Centers  Virginia Mason Kirkland  Evergreen Eye Care  Group Health Ophthalmology  Group Health Ophthalmology  Eye Clinic of University Village  UWMC Eye Center  Bartlett Eye & Laser Clinic  UWMC Eye Center  UWMC Eye Center  UWMC Eye Center  UWMC Eye Center  UWMC Eye Center  UWMC Eye Center  UWMC Eye Center  Sheldon J Cowen MD  Richard Bensinger MD  Harborview Medical Center Eye Clinic  Harborview Medical Center Eye Clinic  Vitreoretinal Associates  Harborview Medical Center Eye Clinic  Harborview Medical Center Eye Clinic  Seattle Ophthalmology PLLC  Glaucoma Consultants  Harborview Medical Center Eye Clinic  Harborview Medical Center Eye Clinic  Harborview Medical Center Eye Clinic  Kim S Mallick MD  Neuro-Ophthalmic Consultants Northwest  Glaucoma Consultants  Harborview Medical Center Eye Clinic  Vitreoretinal Associates  Sound Eye & Laser  Walter M Rotkis MD  Vitreoretinal Associates  UWMC Cosmetic Surgery Center  Harborview Medical Center Eye Clinic  Harborview Medical Center Eye Clinic  Vitreoretinal Associates  Pacific Medical Centers  Eye Associates Northwest  The Polyclinic Ophthalmology  Eye Associates Northwest  Eye Associates Northwest  The Polyclinic Ophthalmology  Eye Associates Northwest  Eye Associates Northwest  Eye Associates Northwest  Virginia Mason Seattle Main  Virginia Mason Seattle Main  Virginia Mason Seattle Main  Virginia Mason Seattle Main  Eye Associates Northwest  Seattle Eye MDs  Seattle Eye MDs  Puget Sound Eye Care  Eye Associates Northwest  Northgate Eye Center  St Marks Eye Institute  Accredited Eye Center  The Eye Center at Valley Medical Center  Northgate Eye Center  Virginia Mason Issaquah  Valley Eye & Laser Center  Valley Eye & Laser Center  Valley Eye & Laser Center  Valley Eye & Laser Center  Northwest Eye Surgeons PC  Northwest Eye Surgeons PC  Northwest Eye Surgeons PC  Northwest Eye Surgeons PC  Northwest Eye Surgeons PC  Northwest Eye Surgeons PC  Northwest Eye Surgeons PC  Northwest Eye Surgeons PC  Pacific Retina Specialists Bellevue, WashingtonUpcoming Local Events2012-06-09
2012-06-16
2012-06-23
2012-07-08
2012-07-15
2012-07-28
2012-07-29
2012-08-04
2012-08-26
2012-09-29
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 Bellevue
Nearby Bellevue Hospitals *Overlake Hospital Medical Center Group Health Eastside Hospital Swedish Medical Center Cherry Hill Campus Children's Hospital & Regional Medical Center Group Health Central Hospital Swedish Medical Center First Hill Campus University of Washington Medical Center Harborview Medical Center Virginia Mason Medical Center Seattle Cancer Care Alliance VA Puget Sound Health Care System Evergreen Hospital Medical Center Fairfax Hospital Kindred Hospital Seattle Highline Medical Center Specialty Campus The Regional Hospital for Respiratory & Complex Care Swedish Medical Center Ballard Campus Northwest Hospital & Medical Center West Seattle Psychiatric Hospital Schick Shadel Hospital Valley Medical Center Highline Medical Center Main Campus Stevens Hospital Valley General Hospital Harrison Medical Center Auburn Regional Medical Center St Francis Hospital Providence Everett Medical Center Pacific Campus Providence Everett Medical Center Colby Campus Mary Bridge Children's Hospital & Health Center Tacoma General Hospital St Joseph Medical Center Allenmore Hospital Pierce County Human Services Enumclaw Regional Hospital Good Samaritan Hospital & Community Healthcare Saint Clare 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. |
Suggested Reading on Electroretinography by Our Doctors
-
Related Diseases & Conditions
1 articles-
Usher Syndrome
- There are three types of Usher (Usher's) syndrome, the most common condition that affects both vision and hearing. The major symptoms of Usher syndrome include retinitis pigmentosa (night-blindness and a loss of peripheral vision), and hearing loss. Usher syndrome is a genetic condition. There is no cure for Usher syndrome.
-
Usher Syndrome
-
Medications
0 articles -
Procedures & Tests
1 articles -
Pictures, Images & Quizzes
0 articles -
Doctor's & Expert's Views
1 articles -
Health News
0 articles -
Health Features
0 articles
