Electroretinography Center - Allentown, PA
Allentown 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 Allentown * Lehigh Valley Eye Center PC  Bausch & Jones Eye Associates  Harry W Buchanan IV MD  Lehigh Valley Eye Center PC  Harvey S Cheng MD  Bausch & Jones Eye Associates  Harry W Buchanan IV MD  Lehigh Valley Eye Center PC  Lehigh Valley Eye Center PC  Lehigh Valley Eye Center PC  Lehigh Valley Eye Center PC  Lehigh Valley Eye Center PC  Lehigh Valley Eye Center PC  Harold J Goldfarb MD  Joseph Kavchok Jr. MD  Lehigh Valley Center For Sight  Lehigh Valley Center For Sight  Lehigh Valley Center For Sight  Lehigh Valley Center For Sight  Lehigh Retina Specialists  Lisa S Bunin MD  Maria Panayotova MD  Thomas Retinal Eye Specialists  Kimmel & Associates PC  Cataract & Refractive Surgery Center  Bethlehem Eye Associates PC  Bethlehem Eye Associates PC  Marilyn R McDonald MD  Bethlehem Eye Associates PC  Bethlehem Eye Associates PC  Paul H Schenck MD  Drs Sweterlitsch & Sweterlitsch MD  Arnold Traupman MD  Robert E Morrison MD  Mid Atlantic Retina  Acuity Laser & Eye Vision Center  Charles E Campbell MD  Gabrielle Schoeppner MD & Associates  Brian M Willard MD  James F Cochran MD  James G McBride MD  Donald E Willard MD  Bucks-Mont Eye Associates  Bucks-Mont Eye Associates  Bucks-Mont Eye Associates  Bucks-Mont Eye Associates  Finegan Eye Associates  Kremer Eye Center  Eye Consultants of Pennsylvania  Eye Consultants of Pennsylvania  Eye Consultants of Pennsylvania  Eye Consultants of Pennsylvania  Eye Consultants of Pennsylvania  Eye Consultants of Pennsylvania  Thomas L Manzo MD PC  Sanatoga Ophthalmology Associates  Sanatoga Ophthalmology Associates  Ophthalmic Associates PC  Ophthalmic Associates PC  Ophthalmic Associates PC  Ophthalmic Associates PC  Ophthalmic Associates PC  Ophthalmic Associates PC  Collegeville Eye Physicians and Surgeons  Harold H Byer MD  Eye Associates LLC  Eye Associates LLC  Tri-County Eye Physicians & Surgeons  Tri-County Eye Physicians & Surgeons  Tri-County Eye Physicians & Surgeons  Tri-County Eye Physicians & Surgeons  Retina Care Associates Inc  Delaware Valley Retina Associates  Joseph J DeVenuto Jr. MD  Retina Associates Of Greater Philadelphia  Retina Associates Of Greater Philadelphia  Ophthalmology Physicians & Surgeons PC  David Galiani MD  Ophthalmology Physicians & Surgeons PC  Matossian Eye Associates  Matossian Eye Associates  Peter J Racciato MD  Phoenixville Eye Care Specialists  Phoenixville Eye Care Specialists  Phoenixville Ophthalmic Associates  Thorp Bailey Weber Eye Associates Ltd  Thorp Bailey Weber Eye Associates Ltd  Thorp Bailey Weber Eye Associates Ltd  Main Line Eye Specialists  Fugo Eye Institute  Jill Schneider MD  Northern Ophthalmic Associates Inc  Northern Ophthalmic Associates Inc  Jill Schneider MD  Don G Koepsell MD  Jeffrey Katzman MD & Karen E Goodwin OD  Pocono Eye Associates  Pocono Eye Associates  Pocono Eye Associates  Pocono Eye Associates Allentown, PennsylvaniaUpcoming Local Events2012-05-26
2012-06-09
2012-06-10
2012-06-16
2012-06-17
2012-08-05
2012-09-30
2012-10-13
2012-10-14
2012-11-16
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 Allentown
Nearby Allentown Hospitals *Lehigh Valley Hospital 17th & Chew Streets Sacred Heart Hospital Good Shepherd Rehabilitation Hospital Allentown St Luke's Hospital Allentown Campus Allentown State Hospital Lehigh Valley Hospital Cedar Crest St Luke's Hospital Bethlehem Campus Westfield Hospital Lehigh Valley Hospital Muhlenberg Center Good Shepherd Home Bethlehem KidsPeace Children's Hospital St Luke's Quakertown Hospital Easton Hospital Triumph Hospital Easton Blue Mountain Health System Palmerton Campus Warren Hospital Grand View Hospital Blue Mountain Health System Gnaden Huetten Campus Pottstown Memorial Medical Center Central Montgomery Medical Center Foundations Behavioral Health Doylestown Hospital St Luke's Miners Memorial Hospital Senator Garret W Hagedorn Psychiatric Hospital St Joseph Medical Center Eagleville Hospital Good Shepherd Rehabilitation Hospital at Pocono Medical Center Pocono Medical Center The Reading Hospital & Medical Center Valley Forge Medical Center & Hospital HEALTHSOUTH Reading Rehabilitation Hospital Hunterdon Medical Center Montgomery County Emergency Service Mercy Suburban Hospital Phoenixville Hospital Norristown State Hospital Horsham Clinic Montgomery Hospital Brooke Glen Behavioral 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. |
Suggested Reading on Electroretinography by Our Doctors
-
Related Diseases & Conditions
1 articles-
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.
-
Usher Syndrome
-
Medications
0 articles -
Procedures & Tests
1 articles -
Pictures, Images & Quizzes
0 articles -
Doctor's & Expert's Views
1 articles -
Health News
0 articles -
Health Features
0 articles
