Electroretinography Center - Naperville, IL
Naperville 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 Naperville * Robert Allar MD  Naperville Eye Associates  Naperville Eye Associates  Naperville Eye Associates  Amjad Z Ahmad MD  Progressive Eye Care  Progressive Eye Care  Progressive Eye Care  Retina Macula Specialists PC  Aurora Eye Clinic  Wheaton Eye Clinic  Wheaton Eye Clinic  Wheaton Eye Clinic  Wheaton Eye Clinic  Wheaton Eye Clinic  Wheaton Eye Clinic  Wheaton Eye Clinic  Wheaton Eye Clinic  Wheaton Eye Clinic  Wheaton Eye Clinic  Wheaton Eye Clinic  Wheaton Eye Clinic  Wheaton Eye Clinic  Wheaton Eye Clinic  Wheaton Eye Clinic  Wheaton Eye Clinic  Wheaton Eye Clinic  Wheaton Eye Clinic  Wheaton Eye Clinic  Wheaton Eye Clinic  Wheaton Eye Clinic  Wheaton Eye Clinic  Wheaton Eye Clinic  Wheaton Eye Clinic  Glen Ellyn Opthalmology  Glen Ellyn Opthalmology  Alan Y Chow MD  Dupage Ophthalmology  Dupage Ophthalmology  Dupage Eye Center  Dupage Eye Center  Oak Park Eye Center  Larson Eye Center Ltd  DuPage Eye Associates  DuPage Eye Associates  Larson Eye Center Ltd  Larson Eye Center Ltd  Dupage Ophthalmology  Arora & Nagpal Assoc  Arora & Nagpal Assoc  Dreyer Mercy Campus Ophthalmology  Aurora Eye Clinic  Aurora Eye Clinic  Dreyer Mercy Campus Ophthalmology  Aurora Eye Clinic  Aurora Eye Clinic  Mark Ros MD  Dennis M Wolf MD  James M Noth MD  Eligijus P Lelis MD  Retina Associates  Robert E Gorsich MD  Anil Gulati MD  Retina Associates  Retina Associates  Retina Associates  Wohl Eye Center  Lakeshore Eye Physicians  Wohl Eye Center  Wohl Eye Center  Herman D Sloane MD  Geneva Eye Clinic Ltd  The Eye Specialists Center  Geneva Eye Clinic Ltd  The Eye Specialists Center  Geneva Eye Clinic Ltd  Geneva Eye Clinic Ltd  Illinois Retina Associates SC  Audrey Wayne MD  Elmhurst Clinic Ophthalmology  Oak Park Eye Center  Elmhurst Clinic Ophthalmology  Raymond Moeller MD  Oak Park Eye Center  Oak Park Eye Center  Smith-Perry Eye Center  Illinois Retina Associates SC  Associated Ophthalmologists  Vision Correction Center  Associated Ophthalmologists  Mark J Fritz MD  Hayden & Kovach Eye Center  Hayden & Kovach Eye Center  C Ronald Lindberg MD SC  Benjamin Eye Care Center  Suburban Associates in Ophthalmology  Suburban Associates in Ophthalmology  Suburban Associates in Ophthalmology  Suburban Associates in Ophthalmology  Suburban Associates in Ophthalmology Naperville, IllinoisUpcoming Local Events2012-06-03
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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 Naperville
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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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