Electroretinography Center - Chesterfield, MO
Chesterfield 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 Chesterfield * Pepose Vision Institute  Pepose Vision Institute  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  John C Perlmutter MD & Donald S Levy MD  John C Perlmutter MD & Donald S Levy MD  Barnes Retina Institute  Retina & Vitreous Consultants  West County Ophthalmology  West County Ophthalmology  West County Ophthalmology  Barnes Retina Institute  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  Glaucoma Consultants Midwest  Advanced Sight Center Inc  Advanced Sight Center Inc  O'Donnell Eye Institute  Eagle Eye Care  Ophthalmology Associates  Des Peres Eye Center  Des Peres Eye Center  Ophthalmology Consultants Ltd  Des Peres Eye Center  Ophthalmology Consultants Ltd  Retina Associates of St Louis  John B Holds MD  Ophthalmology Consultants Ltd  Ophthalmology Associates  Des Peres Eye Center  Ophthalmology Consultants Ltd  Ophthalmology Consultants Ltd  Frank J Catanzaro MD  Steven D Goodrich MD  Hill Vision Services  Eye Specialist of West County PC  Clarkson Eye Care  Elliott L Korn MD  The Retina Group Ltd  Ophthalmology West Inc  Ophthalmology West Inc  Visionary Eyecare & Surgery Inc  Southwest Medical Center  The Retina Center  The Retina Center  St Louis Eye Care Specialists  Eye Surgeons & Physicians of St Louis Ltd  Kursar Eye Care Ltd  St Charles Eye Center Inc  St Charles Eye Center Inc  The Eye Center Inc  Hanish Eye Institute  Jones Eye Care & Surgery  Saint Louis Eye Clinic  Jones Eye Care & Surgery  Cataract & Eye Disease Specialists  Cataract & Eye Disease Specialists  Cataract & Eye Disease Specialists  Cataract & Eye Disease Specialists  Washington University Ophthalmology  James C Bobrow MD  Clinical Ophthalmology  Clinical Ophthalmology  Clarkson Eye Care  Eye Care Associates of St Louis LLC  Eye Care Associates of St Louis LLC  Malaz Safi MD  Premiere Eye Associates PC  Premiere Eye Associates PC  Eye Center of Missouri  Saint Louis Eye Clinic  Robert D Lewis MD  Saint Louis Eye Clinic  Eye Consultants of St Louis  South County Eye Care  Eye Glasses To Go  Becker Eye Center  Washington University Ophthalmology  Washington University Ophthalmology  Washington University Ophthalmology  Washington University Ophthalmology  Washington University Ophthalmology  Washington University Ophthalmology  Washington University Ophthalmology  Washington University Ophthalmology  Washington University Ophthalmology  Washington University Ophthalmology  Eye Microsurgery  Eye Microsurgery Chesterfield, 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 Chesterfield
Nearby Chesterfield Hospitals *St John's Mercy Rehabilitation Hospital St Luke's Hospital Dubuis Hospital of St Louis St Luke's Urgent Care Center on Clarkson Road Barnes-Jewish West County Hospital St John's Mercy Medical Center Missouri Baptist Medical Center Center Pointe Hospital St Luke's Urgent Care Center in St Charles Des Peres Hospital Shriners Hospital for Children Ranken Jordan Pediatric Rehabilitation SSM DePaul Health Center SSM St Joseph Health Center Barnes-Jewish St Peter's Hospital St John's Urgent Care Center Saint Peters SSM St Clare Health Center St Luke's Urgent Care Center in Fenton St John's Mercy Urgent Care Center Progress West HealthCare Center St Luke's Urgent Care Center at WingHaven Hawthorn Children's Psychiatric Hospital SSM Rehab SSM St Mary's Health Center Kindred Hospital St Anthony's St Anthony's Medical Center Forest Park Community Hospital Select Specialty Hospital St Louis Northwest HealthCare Metropolitan St Louis Psychiatric Center St Louis Psychiatric Rehabilitation Center Barnes-Jewish Hospital North Campus Barnes-Jewish Hospital South Campus Kindred Hospital St Louis SSM St Joseph Hospital West St Louis Children's Hospital The Rehabilitation Institute of St Louis Saint Louis University Hospital SSM Cardinal Glennon Children's Medical Center St Louis VA Medical Center Jefferson Barracks St Louis VA Medical Center John Cochran Division St Alexius Hospital Broadway Campus Christian Hospital NE SSM St Joseph Health Center Wentzville Kenneth Hall Regional Hospital Gateway Regional Medical Center Touchette Regional Hospital St John's Mercy Hospital St Clare's Hospital St Anthony's Health Center Alton Memorial Hospital Memorial Hospital Belleville Jefferson Regional Medical Center Lincoln County Medical Center St Elizabeth's Hospital Belleville Anderson Hospital Jersey Community 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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