Electroretinography Center - Santa Clarita, CA
Santa Clarita 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 Clarita * The Valencia Eye Institute  Santa Clarita Valley Eye Center  California Retina Consultants  Brian R Gross MD  Facey Medical Group Canyon Country  Glendale Eye Medical Group  Facey Medical Foundation Mission Hills  Facey Medical Foundation Mission Hills  Facey Medical Foundation Mission Hills  North Valley Eye Medical Group  North Valley Eye Medical Group  Northridge Ophthalmology Associates  Drs Calvin & Calvin  Drs Calvin & Calvin  Sanjay Logani MD  Sanjay Logani MD  Sanjay Logani MD  Leon G Partamian MD  Chang Shultz & Shultz MDs  Chang Shultz & Shultz MDs  Chang Shultz & Shultz MDs  Gene W Zdenek MD  Ophthalmology Associates of the Valley  Davidorf Eye Group  Davidorf Eye Group  Ophthalmology Associates of the Valley  Marshall M Graditor MD  Michelle Reyes MD  Retinal Consultants Of Los Angeles  Ophthalmology Associates of the Valley  Ophthalmology Associates of the Valley  Retinal Consultants Of Los Angeles  Panorama City Medical Center  Harry Loo MD  Valley Eye Center  Valley Eye Center  Valley Eye Center  Kenneth J Arenson MD  Patrick D Keating MD  The Eye Center  The Eye Center  Bernard Monderer MD  DeLaPena Eye Clinic  Eye Institute of Tarzana  David F Kamin MD  Bruce B Becker MD  Colvard Eye Center  Retinal Consultants Of Southern California  Colvard Eye Center  Colvard Eye Center  Conejo Simi Eye Medical Group  Mark A Baskin MD  Valley Retina  Excel Lazer Vision Institute  Hamni Medical Center  Sheryl M Handler MD  Ophthalmology Associates of the Valley  Ophthalmology Associates of the Valley  Retina Vitreous Associates  Reingold Eye Center  Reingold Eye Center  Reingold Eye Center  A Center for Vision Care  A Center for Vision Care  A Center for Vision Care  A Center for Vision Care  John J Mcgroarty MD Inc  John J Mcgroarty MD Inc  Armin Vishteh MD  Berg Feinfield Vision Correction  Berg Feinfield Vision Correction  Berg Feinfield Vision Correction  Berg Feinfield Vision Correction  Berg Feinfield Vision Correction  Debra G Tennen MD  East Valley Eye Center  East Valley Eye Center  Anthony C Arnold MD  Jules Stein Eye Institute  Jules Stein Eye Institute  Joseph Demer MD  Jules Stein Eye Institute  Jules Stein Eye Institute  UCLA Laser Refractive Center  Doris Stein Eye Research Center  Sherwin Isenberg MD  Jules Stein Eye Institute  Jules Stein Eye Institute  Jules Stein Eye Institute  Doris Stein Eye Research Center  Bartly J Mondino MD  Jules Stein Eye Institute  Arthur L Rosenbaum MD  Jules Stein Eye Institute  Bradley R Straatsma MD  Assil Eye Institute  Arthur Benjamin MD  Mark R Sawusch MD  Maloney Vision Institute  Elander Eye Medical Group Santa Clarita, CaliforniaUpcoming Local Events2012-06-10
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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 Clarita
Nearby Santa Clarita Hospitals *Henry Mayo Newhall Memorial Hospital Olive View UCLA Medical Center Providence Holy Cross Medical Center Northridge Hospital Medical Center Simi Valley Hospital Mission Community Hospital Pacifica Hospital of the Valley Kaiser Permanente Panorama City Medical Center West Hills Hospital & Medical Center Valley Presbyterian Hospital Kaiser Permanente Woodland Hills Medical Center Tarzana Regional Medical Center Hollywood Community Hospital of Van Nuys Encino Hospital Medical Center Motion Picture & Television Hospital Sherman Oaks Hospital Providence Saint Joseph Medical Center Los Robles Hospital & Medical Center Verdugo Hills Hospital Ronald Reagan UCLA Medical Center UCLA Neuropsychiatric Hospital Cedars-Sinai Medical Center Hollywood Community Hospital Glendale Adventist Medical Center Glendale Memorial Hospital & Health Center Kaiser Permanente Los Angeles Medical Center Childrens Hospital Los Angeles Hollywood Presbyterian Medical Center Saint John's Health Center Miracle Mile Medical Center Olympia Medical Center Santa Monica UCLA Medical Center VA Greater Los Angeles HealthCare System Kaiser Permanente West Los Angeles Medical Center Temple Community Hospital Brotman Medical Center Gateways Hospital & Mental Health Center Shriners Hospitals for Children Los Angeles St John's Pleasant Valley Hospital St Vincent Medical Center Barlow Respiratory Hospital Antelope Valley Hospital Lancaster Community Hospital Los Angeles Metropolitan Medical Center Good Samaritan Hospital Huntington Hospital Kaiser Mental Health Center Pacific Alliance Medical Center Marina Del Rey Hospital California Hospital Medical Center Kindred Hospital Los Angeles Orthopaedic Medical Center USC Norris Comprehensive Cancer Center USC University Hospital LAC + USC Medical Center LAC + USC Medical Center Women's & Children's Hospital White Memorial Medical Center Alhambra Hospital Medical Center Aurora Las Encinas Hospital Promise Hospital of East Los Angeles San Gabriel Valley Medical Center Centinela Freeman Regional Medical Center Centinela Campus East Los Angeles Doctors Hospital Garfield Medical Center Los Angeles Community Hospital Monterey Park Hospital City of Angels Medical Center Ingleside Campus Community Hospital of Huntington Park Methodist 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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