Electroretinography Center - Hawthorne, CA
Hawthorne 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 Hawthorne * Robert L Charet MD  Century Eye Care & Facial Plastic Surgery Ctr  South Bay Laser Eye Center  Dwight H Smith MD  Timothy Scott MD  Leroy Vaughn MD  James Peace MD  W Benton Boone MD  Semel Vision Care  Semel Vision Care  Frederick Williams MD  Dinsmore Eye Center  Dinsmore Eye Center  HealthCare Partners Medical Group Torrance Specialty  South Bay Eye Institute  James W Bryan MD  South Bay Eye Institute  Raj Dugel MD  Eye Medical Group  Sharper Vision Centers  Children's Eye Care Medical Group  John Maher MD  Peter Mastan MD  Sherman A Robins MD  Century City Eye Medical Group  Ophthalmology Corporation  Alice Song MD Corp  Patrick C Yeh MD  Sanford Davidson MD  Steven Khwarg MD  Alfred Marrone MD  Sunmin Park MD  Retina Vitreous Associates  Dan & Douglas Sakamoto MDs  Dan & Douglas Sakamoto MDs  Eye Institute of Marina Del Rey  Wolstan Eye Associates  Lydia Matkovich MD  Eye Institute of Marina Del Rey  Wolstan Eye Associates  Wolstan Eye Associates  TLC Torrance Natural Sight Laser Vision Center  Eye Care Center  LAC / Martin Luther King Jr General Hospital  Besser and Krivoy MDs  Besser and Krivoy MDs  Cheryl Powell MD  Jay J Richlin MD  Carson,McBeath & Boswell, Inc.  Carson,McBeath & Boswell, Inc.  Emma Vinarsky MD  Drs Cho & Han  Kaiser Permanente Harbor City Mixed Specialties  Kaiser Permanente Harbor City Mixed Specialties  Kaiser Permanente Harbor City Mixed Specialties  Delapena Eye Clinic  CA Center-Refractive Surgery  Delapena Eye Clinic  California Eye Medical Ctr  Charles J Abbott MD  Carl J Gordon MD  Laser Vision Medical  Edward B Lazor MD  Plaza Eye & Surgery Center  Shammas Medical Eye Center  Kenneth Sparks MD  Retina Vitreous Associates  Retina Vitreous Associates  Beverly Hills Center For Vision Correction  Medical Group Associates  David Kamen MD  Joseph Y Lee MD  Joseph Y Lee MD  Retina Vitreous Associates  Kenneth Cohn MD  Marshall J Keyes MD  Retina Vitreous Consultants  Nancy F Sand MD  Henry E Ullman MD  The Wright Center  Richard K Apt MD Inc  Advanced Vision Care  Caster Eye Center  Stuart M Cohen MD  Louise Cooley Davis MD  Rafi Esrial MD  Century City Eye Medical Group  Advanced Vision Care  Stephen P Schall MD  Beverly Hills Vision Center  Shahriar Farzad MD  Farhad M Farzad MD  Stanley S. Kim MD  Cornea Genetic Eye Institute  Cornea Genetic Eye Institute  Cornea Genetic Eye Institute  American Eye Institute  Serrano Eye Center  Sam Goldberger MD  Michael J Groth MD Hawthorne, 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 Usher syndrome?Usher syndrome is the most common condition that affects both hearing and vision. A syndrome is a disease or disorder that has more than one feature or symptom. The major symptoms of Usher syndrome are hearing loss and an eye disorder called retinitis pigmentosa, or RP. RP causes night-blindness and a loss of peripheral vision (side vision) through the progressive degeneration of the retina. The retina is a light-sensitive tissue at the back of the eye and is crucial for vision. As RP progresses, the field of vision narrows - a condition known as "tunnel vision" - until only central vision (the ability to see straight ahead) remains. Many people with Usher syndrome also have severe balance problems. There are three clinical types of Usher syndrome:
In the United States, types 1 and 2 are the most common types. Together, they... Other Related Electroretinography ArticlesEmergency Contact for Hawthorne
Nearby Hawthorne Hospitals *Los Angeles Metropolitan Medical Center Hawthorne Campus Centinela Freeman Regional Medical Center Centinela Campus Memorial Hospital of Gardena Vista Hospital of South Bay Kindred Hospital Los Angeles Providence Little Company of Mary Medical Center Torrance Marina Del Rey Hospital Martin Luther King Jr MAC Service Center LAC Harbor UCLA Medical Center Torrance Memorial Medical Center Del Amo Hospital Brotman Medical Center Kaiser Permanente West Los Angeles Medical Center Los Angeles Metropolitan Medical Center St Francis Medical Center Community Hospital of Huntington Park Orthopaedic Medical Center California Hospital Medical Center Kaiser Permanente South Bay Medical Center Olympia Medical Center Miracle Mile Medical Center VA Greater Los Angeles HealthCare System Good Samaritan Hospital Saint John's Health Center Santa Monica UCLA Medical Center Cedars-Sinai Medical Center Shriners Hospitals for Children Los Angeles St Vincent Medical Center Promise Hospital of East Los Angeles Suburban Medical Center Campus Rancho Los Amigos National Rehabilitation Center Ronald Reagan UCLA Medical Center UCLA Neuropsychiatric Hospital Temple Community Hospital Promise Hospital of East Los Angeles Los Angeles Community Hospital Pacific Hospital of Long Beach Kaiser Mental Health Center Pacific Alliance Medical Center White Memorial Medical Center East Los Angeles Doctors Hospital Barlow Respiratory Hospital Long Beach Memorial Medical Center Miller Children's Hospital Hollywood Community Hospital Lakewood Regional Medical Center Gateways Hospital & Mental Health Center Hollywood Presbyterian Medical Center LAC + USC Medical Center LAC + USC Medical Center Women's & Children's Hospital Downey Regional Medical Center Providence Little Company of Mary Medical Center San Pedro Childrens Hospital Los Angeles Kaiser Permanente Downey Medical Center Kaiser Permanente Los Angeles Medical Center USC Norris Comprehensive Cancer Center Bellflower Medical Center USC University Hospital St Mary Medical Center Coast Plaza Doctors Hospital College Hospital Cerritos Community Hospital of Long Beach Monterey Park Hospital Glendale Memorial Hospital & Health Center Beverly Hospital Providence Saint Joseph Medical Center Metropolitan State Hospital Norwalk Community Hospital Tri-City Regional Medical Center VA Long Beach Healthcare System Alhambra Hospital Medical Center Garfield Medical Center Glendale Adventist Medical Center City of Angels Medical Center Ingleside Campus Sherman Oaks Hospital Presbyterian Intercommunity 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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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.
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