Electroretinography Center - Mishawaka, IN
Mishawaka 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 Mishawaka * Michiana Eye Center  Retina & Vitreous Llc  Retina & Vitreous Llc  Retina & Vitreous Llc  South Bend Clinic for Ophthalmology  South Bend Clinic for Ophthalmology  South Bend Clinic for Ophthalmology  Bluth Gerber & Schwartz Eye Care Center  Bluth Gerber & Schwartz Eye Care Center  Bluth Gerber & Schwartz Eye Care Center  Boling Vision Center  Kenneth W Abbott MD  Kenneth W Abbott MD  James E Gluckin MD  John S Kim MD  Grossnickle Eye Center Warsaw  Grossnickle Eye Center Warsaw  Grossnickle Eye Center Warsaw  Grossnickle Eye Center Warsaw  Grossnickle Eye Center Warsaw  Grossnickle Eye Center Warsaw  Benjamin C Mannix MD & Kathryn A Sommer OD  Health Partners Medical Group of Michigan City  Health Partners Medical Group of Michigan City  Richard Houck MD  Northwest Indiana Eye Associates  Northwest Indiana Eye Associates  Northwest Indiana Eye Associates  Judy L Davis DO  Louis C Bejec MD  Northwest Indiana Eye & Laser Center  Eric Friedman MD  Eye Physicians  Eye Physicians  Eye Care Center of Logansport  Cory Eye Care Center  Deen Gross Eye Centers  Deen Gross Eye Centers  Vision Care Associates  Allen County Retinal Surgeons  Klapper Eyelid & Facial Plastic Surgery  Vision Care Associates  Allen County Retinal Surgeons  Fort Wayne Retina  Ophthalmology Consultants Of Fort Wayne  Ophthalmology Consultants Of Fort Wayne  Ophthalmology Consultants Of Fort Wayne  Retina Vitreous Associates  Retina Vitreous Associates  Deschamps Eye Care PC  20/20 Eye Specialists  Zale Eye Center  Daniel Krach MD  Deen Gross Eye Centers  Holicki Eye Center  Earl A Braunlin MD  J Rex Parent MD  J Rex Parent MD  Norman Kempler MD  PMP Associates  Suzanne Y Lee MD  Brian Paul Weismann MD  Robert L Young MD  Illinois Retina Associates SC  Retina & Associates  Retina & Associates  Hammond Clinic Specialty Center  Northwest Indiana Eye Associates  Munster Eye Care Associates PC  Williams Eye Institute & Surgery Ctr  Williams Eye Institute & Surgery Ctr  Clarian Arnett Clinic North Lafayette  Clarian Arnett Clinic North Lafayette  Jason M Burgett  Rodney B Kusumi MD  Thomas Paul Mattingly MD  Gary E Schraut MD  Williamson Eye Institute  Williamson Eye Institute  Williamson Eye Institute Mishawaka, IndianaUpcoming 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 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 Mishawaka
Nearby Mishawaka Hospitals *Saint Joseph Regional Medical Center Mishawaka Our Lady of Peace Hospital Riverside Hospital Saint Joseph Regional Medical Center South Bend Madison Center & Hospital Memorial Hospital of South Bend Elkhart General Hospital Lakeland Medical Center Niles Community Hospital of Bremen Doctor's Hospital Oaklawn Psychiatric Center Goshen General Hospital Lakeland Specialty Hospital Berrien Center Borgess Lee Memorial Hospital Michiana Behavioral Health Center Saint Joseph Regional Medical Center Plymouth LaPorte Hospital & Health Services Lakeland Hospital St Joseph Starke Memorial 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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