Electroretinography Center - Lorain, OH
Lorain 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 Lorain * Retina Associates of Cleveland Inc  Retina Associates of Cleveland Inc  Retina Associates of Cleveland Inc  Retina Associates of Cleveland Inc  Retina Associates of Cleveland Inc  Cleveland Clinic Lorain Ophthalmology  Cleveland Clinic Lorain Ophthalmology  Cleveland Clinic Lorain Ophthalmology  Cleveland Clinic Lorain Ophthalmology  Dr Gupta Eye MD LLC  The Elyria Eye Clinic Inc  Cleveland Eye Clinic  Rodney H Lynk MD  Jacobs Eye Center  Cleveland Clinic Chestnut Commons  Skyvision Centers of Westlake  Envision Medical Specialists  Robert M Stern MD  Mary A Lavery MD & Kimberly A Cingle MD  Mary A Lavery MD & Kimberly A Cingle MD  Paul W Craven MD  George W Rozakis MD  Premier Physicians Centers Inc  University Ophthalmologists Inc  University Ophthalmologists Inc  The Eye Centers  The Eye Centers  The Eye Centers  The Eye Centers  North Coast Ophthalmology Associates Inc  Western Eye Center I  Corrective Eye Center  Retina Associates of Cleveland Inc  Thomas & Thomas Ophthalmology Inc  Thomas & Thomas Ophthalmology Inc  Retina Associates of Cleveland Inc  Daniel J Mayer MD  The Eye Centers  Peter Nintcheff MD  Peter Nintcheff MD  MetroHealth Outpatient Surgery Center  MetroHealth Outpatient Surgery Center  MetroHealth Outpatient Surgery Center  MetroHealth Outpatient Surgery Center  Richard A Statesir MD  Thomas Cliffel MD  Medical Eye Associates  Medical Eye Associates  Medical Eye Associates  Medical Eye Associates  Cleveland Clinic Beachwood Ophthalmology  Kaiser Permanente Ophthalmologist  Eye Medical & Surgical Associates  Northern Ohio Eye Center Inc  Benjamin V Hu MD  Mirfee K Ungier MD  Michael V Coseriu MD  Myron E Bodnar MD  Eric S Eleff MD  MetroHealth Medical Center Eye Clinic  MetroHealth Medical Center Eye Clinic  MetroHealth Medical Center Eye Clinic  MetroHealth Medical Center Eye Clinic  North Central Eye Associates  North Central Eye Associates  Howard Siegel MD  Corrective Eye Center  Corrective Eye Center  Abrams Eye Center Inc  Cleveland Eye Clinic  Medical Eye Associates  Cleveland Clinic Beachwood Ophthalmology  Cleveland Clinic Beachwood Ophthalmology  Harris Schild MD & Jen Collins OD  Retina Vitreous Associates  Retina Vitreous Associates  Parschauer Eye Care  Parschauer Eye Care  Parschauer Eye Care  Advanced Eye Care Center of Cleveland Inc  George Hoppe MD  Cleveland Clinic Cole Eye Institute  Cleveland Clinic Cole Eye Institute  Cleveland Clinic Cole Eye Institute  George Hoppe MD  Cleveland Clinic Cole Eye Institute  Cleveland Clinic Cole Eye Institute  Cleveland Clinic Cole Eye Institute  Cleveland Clinic Cole Eye Institute  Cleveland Clinic Cole Eye Institute  Cleveland Clinic Cole Eye Institute  Cleveland Clinic Cole Eye Institute  Cleveland Clinic Cole Eye Institute  Cleveland Clinic Cole Eye Institute  Cleveland Clinic Cole Eye Institute  Cleveland Clinic Cole Eye Institute  Cleveland Clinic Cole Eye Institute  Cleveland Clinic Cole Eye Institute  Cleveland Clinic Cole Eye Institute  Cleveland Clinic Cole Eye Institute Lorain, OhioUpcoming Local Events2012-05-27
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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 Lorain
Nearby Lorain Hospitals *Community Health Partners Regional Medical Center Hospital for Orthopaedic & Specialty Services Specialty Hospital of Lorain EMH Regional Medical Center Allen Community Hospital St John West Shore Hospital Fairview Hospital Southwest General Health Center Lakewood Hospital Parma Community General Hospital Lutheran Hospital MetroHealth Medical Center NorthCoast Behavioral HealthCare North Grace Hospital Kindred Hospital Cleveland Gateway St Vincent Charity Hospital Firelands Regional Medical Center Main Campus Fisher Titus Medical Center Firelands Regional Medical Center South Campus Cleveland Clinic Children's Hospital for Rehabilitation Medina General Hospital Cleveland Clinic Rainbow Babies & Children's Hospital University Hospitals Case Medical Center Louis Stokes VA Medical Center Kindred Hospital Cleveland Marymount Hospital Lodi Community Hospital NorthCoast Behavioral HealthCare South Huron Hospital South Pointe Hospital Euclid Hospital University Hospitals Bedford 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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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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Usher Syndrome
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