Electroretinography Center - Kalamazoo, MI
Kalamazoo 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 Kalamazoo * Midwest Eye Care PC  Midwest Eye Care PC  Paragon Health PC  Paragon Health PC  Paragon Health PC  Healthcare Midwest Ophthalmology & ENT  Sassaman Singer Eye Center PC  Sassaman Singer Eye Center PC  Advanced Vision Care PC  Eye Care Physicians & Surgeons PC  Kalamazoo Ophthalmology PC  Kalamazoo Ophthalmology PC  James L Keller MD  Southwest Michigan Eye Center  Southwest Michigan Eye Center  Southwest Michigan Eye Center  Eye & ENT Specialists PC  Eye & ENT Specialists PC  Eye & ENT Specialists PC  Advanced Eye Care  South Michigan Ophthalmology  South Michigan Ophthalmology  Holicki Eye Center  Parial Eye Physicians  Parial Eye Physicians  Grand Rapids Eye Institute  Pediatric Ophthalmology PC  Michigan Medical PC Ophthalmology  Bruce D Dragoo MD PC  David M Reifler MD  Verdier Eye Center PC  Verdier Eye Center PC  Verdier Eye Center PC  Associates Retinal Consultants PC  Associates Retinal Consultants PC  Grand Rapids Ophthalmology  Grand Rapids Ophthalmology  Grand Rapids Ophthalmology  Grand Rapids Ophthalmology  Grand Rapids Ophthalmology  Grand Rapids Ophthalmology  Mark O Moleski MD  Grand Rapids Ophthalmology  Grand Rapids Ophthalmology  Grand Rapids Ophthalmology  Grand Rapids Ophthalmology  Harrison Eye Center  Richard Benninger MD  Michael J Crawford MD  Glaucoma Eye Center PC  Sight Eye Clinic  Sight Eye Clinic  Sight Eye Clinic  Holland Eye Surgery & Laser Center  Holland Eye Surgery & Laser Center  Great Lakes Eye Care  Great Lakes Eye Care  Great Lakes Eye Care  Great Lakes Eye Care  Great Lakes Eye Care  Great Lakes Eye Care  Gossage Eye Institute  Gossage Eye Institute  Bruce A Klunzinger MD  The Center For Sight  The Center For Sight  Rosenbaum Eye & Laser Center  TLC Eye Care & Laser Centers  Rosenbaum Eye & Laser Center  Evans Eye Center  TLC Eye Care & Laser Centers  TLC Eye Care & Laser Centers  TLC Eye Care & Laser Centers  TLC Eye Care & Laser Centers  Lansing Ophthalmology  Lansing Ophthalmology  Lansing Ophthalmology  Lansing Ophthalmology  Lansing Ophthalmology  Lansing Ophthalmology  Lansing Ophthalmology  Lansing Ophthalmology  Lansing Ophthalmology  Lansing Ophthalmology  Parkside Eye Clinic  Crew Eye Center  Michigan Eye Care Specialists  Michigan Eye Care Specialists  Giora Adam MD  Shoreline Ophthalmology PC  Shoreline Ophthalmology PC  MSU Medical Specialties  MSU Medical Specialties  MSU Medical Specialties  MSU Medical Specialties  MSU Medical Specialties  MSU Medical Specialties  MSU Medical Specialties  Thomas J Jennings MD  Shoreline Ophthalmology PC Kalamazoo, MichiganUpcoming Local Events2012-06-01
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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 Kalamazoo
Nearby Kalamazoo Hospitals *Borgess Medical Center Bronson Methodist Hospital Battle Creek VA Medical Center Kalamazoo Psychiatric Hospital Borgess Pipp Hospital Fieldstone Center Battle Creek Health System Southwest Regional Rehabilitation Center Bronson Vicksburg Hospital Pennock Hospital Allegan General Hospital Bronson LakeView Hospital Oaklawn Hospital Three Rivers Health Hayes Green Beach 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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