Electroretinography Center - Levittown, PA
Levittown 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 Levittown * John F Glodek MD  Joseph J DeVenuto Jr. MD  David S C Pao MD  David S C Pao MD  Total Eye Care Center  Total Eye Care Center  Total Eye Care Center  Oxford Valley Eye Associates  Sadeer B Hannush MD  Eye Associates of Bucks County  Delaware Valley Retina Associates  Delaware Valley Retina Associates  Eye Associates of Bucks County  Delaware Valley Retina Associates  Century Eye Care  Century Eye Care  Century Eye Care  Century Eye Care  Soll Eye Associates  Soll Eye Associates  Soll Eye Associates  Soll Eye Associates  Newtown Laser & Eye Institute  Cosmetic Surgery Specialists  William C Brown MD  William C Brown MD PC  Iftikhar M Chaudry MD  Allen C Richmond MD  Jay Calesnick MD  Richboro Eye Care  Casimir Czarnecki MD  Eugene Fernandes MD  Bucks County Eye Group  Nevyas Eye Associates  Nevyas Eye Associates  Nevyas Eye Associates  Keystone Eye Associates  Keystone Eye Associates  Keystone Eye Associates  Tri-County Eye Physicians & Surgeons  Tri-County Eye Physicians & Surgeons  Tri-County Eye Physicians & Surgeons  Tri-County Eye Physicians & Surgeons  Tri-County Eye Physicians & Surgeons  Keystone Eye Associates  Keystone Eye Associates  Northern Ophthalmic Associates Inc  Northern Ophthalmic Associates Inc  Valley Eye  Mid Atlantic Retina  Khoury & Shayegan & Kauffman MDs  Khoury & Shayegan & Kauffman MDs  Khoury & Shayegan & Kauffman MDs  Mid Atlantic Retina  Twer Eye Care Associates  Keystone Eye Associates  Keystone Eye Associates  Kinnari K Bakshi MD  Huntingdon Valley Eye Care Consultants  Dion Ehrlich MD  Temple Ophthalmology Associates  Temple Ophthalmology Associates  Temple Ophthalmology Associates  Suburban Eye Associates  Suburban Eye Associates  Soll Eye Associates  Armstrong Colt George Ophthalmology  Ophthalmology Physicians & Surgeons PC  Armstrong Colt George Ophthalmology  Armstrong Colt George Ophthalmology  Armstrong Colt George Ophthalmology  Ophthalmology Physicians & Surgeons PC  Soll Eye Associates  Soll Eye Associates  Soll Eye Associates  Moore Eye Institute  Kremer Eye Center  Northern Ophthalmic Associates Inc  Jonathan Grohsman MD  Matossian Eye Associates  Matossian Eye Associates  Philadelphia Eye Associates  Philadelphia Eye Associates  Theresa K Reilly MD  Philadelphia Eye Associates  Theresa K Reilly MD  St Christopher Pediatric Association Ophthalmology  Neuroophthalmology Associates  David Galiani MD  Progressive Vision Institute Eye Care Center  Progressive Vision Institute Eye Care Center  Keystone Eye Associates  Temple Ophthalmology Associates  G W Stubbs MD  Benjamin H Bloom MD  Bruce K Brownstein MD  Thorp Bailey Weber Eye Associates Ltd  Mid Atlantic Retina  Mid Atlantic Retina  Mid Atlantic Retina Levittown, PennsylvaniaUpcoming Local Events2012-05-29
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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 Usher syndrome?Usher syndrome is the most common condition that affects both hearing and vision. A syndrome is a disease or disorder that has more than one feature or symptom. The major symptoms of Usher syndrome are hearing loss and an eye disorder called retinitis pigmentosa, or RP. RP causes night-blindness and a loss of peripheral vision (side vision) through the progressive degeneration of the retina. The retina is a light-sensitive tissue at the back of the eye and is crucial for vision. As RP progresses, the field of vision narrows - a condition known as "tunnel vision" - until only central vision (the ability to see straight ahead) remains. Many people with Usher syndrome also have severe balance problems. There are three clinical types of Usher syndrome:
In the United States, types 1 and 2 are the most common types. Together, they... Other Related Electroretinography ArticlesEmergency Contact for Levittown
Nearby Levittown Hospitals *Frankford Hospital Bucks County Lower Bucks Hospital Capital Health System Mercer Campus St Mary Medical Center St Francis Medical Center Capital Health System Fuld Campus Lourdes Medical Center of Burlington County Trenton Psychiatric Hospital Robert Wood Johnson University Hospital at Hamilton Aria Health Hampton Behavioral Health Center St Lawrence Rehabilitation Center Virtua Memorial Hospital Burlington County Angela Jane Pavilion Rehabilitation Hospital Nazareth Hospital Abington Memorial Health Center Warminster Campus Virtua Health & Rehabilitation Center @ Mt Holly Holy Redeemer Hospital & Medical Center Fox Chase Cancer Center Jeanes Hospital Abington Memorial Hospital Moss Rehabilitation Hospital Elkins Park Kindred Hospital Philadelphia Merwick Rehabilitation Hospital Frankford Hospital Frankford University Medical Center at Princeton Friends Hospital CTCA at Eastern Regional Medical Center Deborah Heart & Lung Center Moss Rehabilitation Hospital Albert Einstein Medical Center Kennedy Health System Cherry Hill Campus Princeton House Behavioral Health St Christopher's Hospital for Children Doylestown Hospital Marlton Rehabilitation Hospital Virtua West Jersey Hospital Marlton Weisman Children's Rehabilitation Hospital Foundations Behavioral Health Shriners Hospital for Children Temple University Hospital Kensington Hospital Brooke Glen Behavioral Hospital Horsham Clinic Montgomery Rehab Hospital of Chestnut Hill Girard Medical Center Chestnut Hill Hospital Our Lady of Lourdes Medical Center Cooper University Hospital Virtua Health Voorhees Virtua Health Camden Roxborough Memorial Hospital Fairmount Behavioral Health System Hahnemann University Hospital St Joseph Hospital Magee Rehabilitation Hospital Wills Eye Hospital Pennsylvania Hospital Thomas Jefferson University Hospital Carrier Clinic Belmont Center for Comprehensive Treatment Hospital of the University of Pennsylvania Children's Hospital of Philadelphia Penn Presbyterian Medical Center Saint Agnes Medical Center Central Montgomery Medical Center Methodist Hospital Philadelphia VA Medical Center Kennedy Health System Stratford Campus Buttonwood Hospital of Burlington County Lankenau Hospital Mercy Hospital of Philadelphia Mercy Suburban Hospital Hunterdon Medical Center Virtua West Jersey Hospital Berlin 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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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.
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Usher Syndrome
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