Electroretinography Center - North Fort Myers, FL
North Fort Myers 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 North Fort Myers * Southwest Florida Eye Care  Southwest Florida Eye Care  Retina Consultants of Southwest Florida  Retina Consultants of Southwest Florida  Retina Consultants of Southwest Florida  Retina Consultants of Southwest Florida  Retina Consultants of Southwest Florida  Cataract & Refractive Institute  Eye Health of Fort Myers Inc  Charles Eugene Cox MD  Valerie Crandall MD & Associates  R Thad Goodwin MD PA  Optical Shoppe  Eye Centers of Florida  Eye Centers of Florida  Eye Associates of Fort Myers  Eye Associates of Fort Myers  South Florida Eye Clinic  Retina Health Center  Retina Health Center  Florida Eye Health  Florida Eye Health  Cape Coral Eye Center  Cape Coral Eye Center  Cape Coral Eye Center  Gorovoy MD Eye Specialists  John W Snead MD  Elmquist Eye Group  Eye Health of Fort Myers Inc  Eye Health of Fort Myers Inc  Azul Cosmetic Surgery & Medical Spa  Collins Vision  West Coast Eye Care  Oculoplastics of Southwest Florida  Pierre Bourgon MD  Konowal Vision  Christopher Stelly MD  Advanced Eye Care & Laser Center  Institute For Ophthalmic & Facial Plastic Surgery  Florida Retina Center  Neil B Zusman MD  David M Klein MD  Nash Cataract & Laser Institute  Nash Cataract & Laser Institute  Nash Cataract & Laser Institute  George B Fisher III MD  Montgomery Eye Center  Charles Gremillion MD  Alan J Knapp MD  Alan J Knapp MD  Gaskins Eye Care & Surgery Center  Gary J Pearce MD  Groom Eye Center  David E Poeltl & Paul M Rougraff MDs  David E Poeltl & Paul M Rougraff MDs  David E Poeltl & Paul M Rougraff MDs  Bascom Palmer Eye Institute  Bascom Palmer Eye Institute  Bascom Palmer Eye Institute  Bascom Palmer Eye Institute  Bascom Palmer Eye Institute  Bascom Palmer Eye Institute  Bascom Palmer Eye Institute  Bascom Palmer Eye Institute  Bascom Palmer Eye Institute  Bascom Palmer Eye Institute  Bascom Palmer Eye Institute  Bascom Palmer Eye Institute  Bascom Palmer Eye Institute  Bascom Palmer Eye Institute  Bascom Palmer Eye Institute  Bascom Palmer Eye Institute  Bascom Palmer Eye Institute  Bascom Palmer Eye Institute  Bascom Palmer Eye Institute  Bascom Palmer Eye Institute  Bascom Palmer Eye Institute  Bascom Palmer Eye Institute  Naples Eye Associates PA  Naples Eye Associates PA  Richard A Conroy MD  Provision Laser Eye Center  Richard A Conroy MD  Donald A McEachern MD  Center for Sight  Center for Sight  Center for Sight  Ophthalmic Consultants  Institute For Advanced Medicine  Manatee Sarasota Eye Clinic  Sarasota Cataract & Laser Institute  Gulf Coast Glaucoma Clinic  Gulf Coast Glaucoma Clinic  Sarasota Retina Institute  Sarasota Retina Institute  Sarasota Retina Institute  Sarasota Retina Institute  Eye Specialists of Mid Florida PC  Kantor Institute & Laser Center  Kantor Institute & Laser Center North Fort Myers, FloridaUpcoming Local Events2012-05-26
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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 North Fort Myers
Nearby North Fort Myers Hospitals *Cape Coral Hospital Lee Memorial Hospital Southwest Florida Regional Medical Center Gulf Coast Hospital HealthPark Medical Center Lehigh Regional Medical Center Riverside Behavioral Center Charlotte Regional Medical Center Fawcett Memorial Hospital Peace River Medical Center NCH Healthcare System North Collier Hospital Englewood Community Hospital Physicians Regional Medical Center Pine Ridge Rd 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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