Electroretinography Center - Eldersburg, MD
Eldersburg 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 Eldersburg * Eye Care Associates MD  South Penn Eyecare  Physicians Eye Care Center LLC  Physicians Eye Care Center LLC  Physicians Eye Care Center LLC  Physicians Eye Care Center LLC  Physicians Eye Care Center LLC  Center for Total Eye Care  Center for Total Eye Care  Edward J Goldman MD  Drs Weintraub & Kessler  Eye Consultants of Maryland  Eye Consultants of Maryland  Eye Consultants of Maryland  Eye Consultants of Maryland  Drs Weintraub & Kessler  Jay C Grochmal MD  Brull & Honig MD PA & Associates  Brull & Honig MD PA & Associates  Richard A Gruen MD  Brull & Honig MD PA & Associates  University of Maryland Eye Associates  Alfred A Meisels MD  Eye Consultants of Maryland  Mark W Preslan MD  University of Maryland Eye Associates  Brull & Honig MD PA & Associates  Maryland Center for Neuro Ophthalmology & Neuro-otology  Wilmer Eye Institute at Columbia  Wilmer Eye Institute at Columbia  Omni Eye Specialists  Omni Eye Specialists  Omni Eye Specialists  Krieger Eye Institute  Clinical Associates PA Pikesville  Eye Care Associates MD  Medical Eye Center PA  Medical Eye Center PA  Maryland Neuro-Ophthalmology  Medical Eye Center PA  Leon Strauss MD  Medical Eye Center PA  W Jackson Iliff MD  Patapsco Eye MDs LLC  Patapsco Eye MDs LLC  Patrick Y Tong MD PhD  Joanne Waeltermann MD  Jay C Grochmal MD  Sinai Hospital Ophthalmology  Sinai Hospital Ophthalmology  Wilmer Eye Institute at Green Spring Station  Wilmer Eye Institute at Green Spring Station  Wilmer Eye Institute at Green Spring Station  Wilmer Eye Institute at Green Spring Station  Wilmer Eye Institute at Green Spring Station  Wilmer Eye Institute at Green Spring Station  Wilmer Eye Institute at Green Spring Station  Ronald C Richter MD  Wilmer Eye Institute at Green Spring Station  Wilmer Eye Institute at Green Spring Station  Wilmer Eye Institute at Green Spring Station  Nader G Gary MD  Darab Hormozi MD  Robert B Kaufman MD  Nader G Gary MD  Krieger Eye Institute  Krieger Eye Institute  Krieger Eye Institute  Krieger Eye Institute  Krieger Eye Institute  Krieger Eye Institute  Krieger Eye Institute  Krieger Eye Institute  Raymond W Doyle MD  Alan L Robin MD  The Retina Care Center  The Retina Care Center  Florence Davidovski MD PA  Sharon C Gross MD  Patricia L Schmoke MD  Select Eye Care  Select Eye Care  Eye Care & Surgical Center  Eye Care & Surgical Center  William James Pogoda MD PA  Nicole Bertram-Love MD  Eye & Cosmetic Surgery Center  Glaucoma Consultants  Nancy J Ronsheim MD  Glaucoma Consultants  Ismail A Shalaby MD PhD  Stuart H Lessans MD  Stuart H Lessans MD  Baltimore Eye Physicians LLC  Baltimore Eye Physicians LLC  Kameen Eye Associates  Baltimore Eye Physicians LLC  John S Minkowski MD  Ronald S Oser MD  Baltimore Eye Physicians LLC Eldersburg, MarylandUpcoming Local Events2012-06-02
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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 Eldersburg
Nearby Eldersburg Hospitals *Springfield Hospital Center Northwest Hospital Carroll Hospital Center Sheppard Pratt at Ellicott City Howard County General Hospital Kernan Hospital Spring Grove Hospital Center Levindale Hebrew Geriatric Center & Hospital Sinai Hospital of Baltimore Mt Washington Pediatric Hospital Greater Baltimore Medical Center Saint Agnes Hospital Sheppard Pratt Health System Bon Secours Baltimore Health System St Joseph Medical Center Montgomery General Hospital Union Memorial Hospital Maryland General Hospital Baltimore VA Medical Center University of Maryland Medical Center Good Samaritan Hospital of Maryland Mercy Medical Center University Specialty Hospital Kennedy Krieger Institute Johns Hopkins Hospital Harbor Hospital Center Laurel Regional Hospital Johns Hopkins Bayview Medical Center Frederick Memorial Hospital Shady Grove Adventist Hospital Adventist Rehabilitation Hospital of Maryland Potomac Ridge Behavioral Health Adventist HealthCare Baltimore Washington Medical Center Franklin Square Hospital Center Holy Cross Hospital Hanover Hospital Suburban Hospital National Institutes of Health Washington Adventist Hospital Doctors Community Hospital Walter Reed Army Medical Center The HSC Pediatric Center Providence Hospital Psychiatric Institute of Washington Prince George's Hospital Center Gettysburg Hospital Gladys Spellman Specialty Hospital National Rehabilitation Hospital Washington DC VA Medical Center Washington Hospital Center Children's National Medical Center Upper Chesapeake Medical Center Sibley Memorial Hospital Howard University Hospital Georgetown University 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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