Electroretinography Center - Bristol, CT
Bristol 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 Bristol * Bristol Eye Associates  Bristol Eye Associates  Steven Hunter MD LLC  Ronald C Bezahler MD  Eye Center of Grove Hill  Eye Center of Grove Hill  Southington Eye Associates PC  Eye Center of Grove Hill  Nolan Eye & Laser Center  Children's Eye Care PC  Children's Eye Care PC  Children's Eye Care PC  Consulting Ophthalmologists PC  Consulting Ophthalmologists PC  Consulting Ophthalmologists PC  Consulting Ophthalmologists PC  Consulting Ophthalmologists PC  Consulting Ophthalmologists PC  Consulting Ophthalmologists PC  Consulting Ophthalmologists PC  Consulting Ophthalmologists PC  Eye Center of Grove Hill  Eye Center of Grove Hill  Retina Consultants PC  Retina Consultants PC  Retina Consultants PC  Primary Eye Care Center PC  UConn Health Center Surgery  UConn Health Center Surgery  Primary Eye Care Center PC  Ijaz Shafi MD  UConn Health Center Surgery  Opticare Eye Health & Vision Centers  Opticare Eye Health & Vision Centers  Opticare Eye Health & Vision Centers  Opticare Eye Health & Vision Centers  Opticare Eye Health & Vision Centers  Greater Waterbury Retina LLC  Danbury Optical  Opticare Eye Health & Vision Centers  Opticare Eye Health & Vision Centers  Opticare Eye Health & Vision Centers  Opticare Eye Health & Vision Centers  Opticare Eye Health & Vision Centers  Greater Waterbury Retina LLC  The Eye Care Group  The Eye Care Group  The Eye Care Group  The Eye Care Group  The Eye Care Group  The Eye Care Group  The Eye Care Group  The Eye Care Group  The Eye Care Group  Eye Center Medical & Surgical Group  Eye Physicians Of Central CT PC  Eye Physicians Of Central CT PC  Eye Physicians Of Central CT PC  Hartford Eye Physicians PC  Ratchford Eye Center LLC  Ratchford Eye Center LLC  Connecticut Eye Center PC  Connecticut Eye Center PC  Shari M Roth MD  Acuity Eye Physicians and Surgeons PC  Edward L Osborn MD  Alexander J Fortier MD  William R Maron MD PC  Litchfield Hill Eye Physicians  Litchfield Hill Eye Physicians  Litchfield Hill Eye Physicians  Eye Physicians Of Central CT PC  Solinsky EyeCare LLC  Robert T Spector MD FACS  Donald J Salzberg MD  Eye Health Professionals PC  Ophthalmic Consultants of Connecticut  Helen D Newton MD  Greater Hartford Ophthalmology LLC  William R Maron MD PC  Retina Consultants PC  Barry D Kels MD  Retina Consultants PC  Retina Consultants PC  Hartford Ophthalmology Associates  Peter C Donshik MD PC  Joseph F Bentivegna MD  Eye Disease Consultants LLC  Oculofacial Associates of Connecticut LLC  Peter H Haffner MD  David K Emmel MD  Lasik Plus  Joseph S Elman MD PC  Joseph S Elman MD PC  Eye Center Medical & Surgical Group  Eye Center Medical & Surgical Group  Eye Center Medical & Surgical Group  Eye Center Medical & Surgical Group  Eye Center Medical & Surgical Group  New Haven Ophthalmology Associates Bristol, ConnecticutUpcoming Local Events2012-06-17
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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 Bristol
Nearby Bristol Hospitals *Bristol Hospital Hospital for Special Care The Hospital of Central Connecticut New Britain Campus University of Connecticut Health Center John Dempsey The Hospital of Central Connecticut Bradley Campus St Mary's Hospital Waterbury Hospital VA Connecticut Healthcare System Newington Campus MidState Medical Center Cedarcrest Hospital Charlotte Hungerford Hospital The Hospital at Hebrew Healthcare St Francis Hospital & Medical Center Connecticut Children's Medical Center Hartford Hospital Institute of Living Hartford Hospital Gaylord Hospital Veterans Home & Hospital Rocky Hill Mount Sinai Rehabilitation Hospital St Francis Care Hospital Mount Sinai Campus Masonic Healthcare Center Middlesex Hospital Connecticut Valley Hospital Riverview Hospital for Children & Youth Rushford Center Hungerford Emergency & Medical Care Manchester Memorial Hospital Griffin Hospital New Milford Hospital Hospital of St Raphael Connecticut Mental Health Center Yale-New Haven Hospital Yale-New Haven Psychiatric Hospital VA Connecticut Healthcare System West Haven Campus Rockville General Hospital Sharon Hospital Danbury Hospital Noble Hospital Milford Hospital Western Massachusetts 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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