Electroretinography Center - Saint Charles, MO
Saint Charles 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 Saint Charles * John C Perlmutter MD & Donald S Levy MD  John C Perlmutter MD & Donald S Levy MD  St Charles Eye Center Inc  St Charles Eye Center Inc  Jones Eye Care & Surgery  Kursar Eye Care Ltd  Saint Louis Eye Clinic  Jones Eye Care & Surgery  Ophthalmology West Inc  Ophthalmology West Inc  The Eye Center Inc  Glaucoma Consultants Midwest  Advanced Sight Center Inc  Advanced Sight Center Inc  St Louis Children's Hospital Eye Center  St Louis Children's Hospital Eye Center  Washington University Ophthalmology  Washington University Ophthalmology  Washington University Ophthalmology  St Louis Children's Hospital Eye Center  Eagle Eye Care  Clarkson Eye Care  Cataract & Eye Disease Specialists  Cataract & Eye Disease Specialists  Cataract & Eye Disease Specialists  Cataract & Eye Disease Specialists  St Louis Eye Care Specialists  Southwest Medical Center  The Retina Center  The Retina Center  Hill Vision Services  The Retina Group Ltd  Barnes Retina Institute  West County Ophthalmology  Barnes Retina Institute  Fred C Chu MD  Cohen Eye Associates Ltd  Barnes Retina Institute  Barnes Retina Institute  Barnes Retina Institute  Retina & Vitreous Consultants  Barnes Retina Institute  Retina & Vitreous Consultants  West County Ophthalmology  West County Ophthalmology  West County Ophthalmology  Barnes Retina Institute  O'Donnell Eye Institute  The Eye Center Inc  Ophthalmology Consultants Ltd  Ophthalmology Consultants Ltd  Ophthalmology Consultants Ltd  Steven D Goodrich MD  Ophthalmology Consultants Ltd  Ophthalmology Consultants Ltd  Eye Specialist of West County PC  Stephen E Kraft MD LLC  Retina Associates of St Louis  Stephen E Kraft MD LLC  Retina Associates of St Louis  Washington University Ophthalmology  Frank J Catanzaro MD  Elliott L Korn MD  Visionary Eyecare & Surgery Inc  Pepose Vision Institute  Pepose Vision Institute  Hanish Eye Institute  Ophthalmology Associates  Des Peres Eye Center  Des Peres Eye Center  Des Peres Eye Center  John B Holds MD  Ophthalmology Associates  Des Peres Eye Center  James C Bobrow MD  Premiere Eye Associates PC  Premiere Eye Associates PC  Clinical Ophthalmology  Clinical Ophthalmology  Eye Surgeons & Physicians of St Louis Ltd  Eye Care Associates of St Louis LLC  Eye Care Associates of St Louis LLC  Clarkson Eye Care  Eye Center of Missouri  Eye Microsurgery  Eye Microsurgery  Malaz Safi MD  Eye Associates  Eye Associates  Ramulu Samudrala MD  L Paul Stewart MD & Charles Staton OD  Becker Eye Center  Southwest Medical Center  Barnes Retina Institute  Pernaud Eye Institute  Barnes Retina Institute  Cohen Eye Associates Ltd  Barnes Retina Institute  Pernaud Eye Institute  Pernaud Eye Institute Saint Charles, MissouriUpcoming 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 a visual field test?A visual field test is a method of measuring an individual's entire scope of vision, that is their central and peripheral (side) vision. Visual field testing actually maps the visual fields of each eye individually. The visual field test is a subjective examination, requiring the patient to understand the testing instructions, fully cooperate, and complete the entire test in order to provide useful information. What is a visual field test used for?Visual field testing is most frequently used to detect any signs of glaucoma damage to the optic nerve. In addition, visual field tests are useful for detection of central or peripheral retinal disease, eyelid conditions such as ptosis or drooping, optic nerve disease, and diseases affecting the visual pathways within the brain. The visual pathways carry information from the eye to the visual or occipital cortex in the brain, where this information is proces... Other Related Electroretinography ArticlesEmergency Contact for Saint Charles
Nearby Saint Charles Hospitals *SSM St Joseph Health Center SSM DePaul Health Center Barnes-Jewish St Peter's Hospital St John's Urgent Care Center Saint Peters Ranken Jordan Pediatric Rehabilitation Barnes-Jewish West County Hospital Northwest HealthCare Center Pointe Hospital St Luke's Hospital St Luke's Urgent Care Center in St Charles St John's Mercy Medical Center St John's Mercy Rehabilitation Hospital Dubuis Hospital of St Louis Missouri Baptist Medical Center St John's Mercy Urgent Care Center Shriners Hospital for Children Hawthorn Children's Psychiatric Hospital Christian Hospital NE Progress West HealthCare Center St Luke's Urgent Care Center at WingHaven St Luke's Urgent Care Center on Clarkson Road Des Peres Hospital SSM Rehab SSM St Mary's Health Center Metropolitan St Louis Psychiatric Center SSM St Joseph Hospital West Forest Park Community Hospital Select Specialty Hospital St Louis Barnes-Jewish Hospital North Campus Kindred Hospital St Louis Barnes-Jewish Hospital South Campus St Louis Children's Hospital The Rehabilitation Institute of St Louis St Louis Psychiatric Rehabilitation Center St Louis VA Medical Center John Cochran Division Saint Louis University Hospital SSM Cardinal Glennon Children's Medical Center SSM St Clare Health Center St Clare's Hospital St Anthony's Health Center St Luke's Urgent Care Center in Fenton Alton Memorial Hospital Gateway Regional Medical Center St Alexius Hospital Broadway Campus Kindred Hospital St Anthony's St Anthony's Medical Center SSM St Joseph Health Center Wentzville Kenneth Hall Regional Hospital St Louis VA Medical Center Jefferson Barracks Jersey Community Hospital Touchette Regional Hospital Lincoln County Medical Center Anderson Hospital Memorial Hospital Belleville St John's Mercy Hospital St Elizabeth's Hospital Belleville 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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