Electroretinography Center - Penn Hills, PA
Penn Hills 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 Penn Hills * John A Charley MD  Scott & Christie & Associates PC  Scott & Christie & Associates PC  Eye Physicians & Surgeons Ltd  Western Pa Surgical Eye Assoc  Eye Physicians & Surgeons Ltd  Western Pa Surgical Eye Assoc  S Venkatesh MD PC  Western Pa Surgical Eye Assoc  Western Pa Surgical Eye Assoc  Davis Eye Group  J R Browning MD  Everett & Hurite Ophthalmic Association  Everett & Hurite Ophthalmic Association  Everett & Hurite Ophthalmic Association  David J Baker MD  David J Baker MD  Medical & Surgical Eye Associates  Medical & Surgical Eye Associates  Medical & Surgical Eye Associates  Luna Vision  Valley Eye Associates  Hugo Cerri MD  Eyepolis  Berkowitz & Rosenberg MDs  Associates In Ophthalmology  The Eyesight Center  Associates In Ophthalmology  Eye Physicians & Surgeons Ltd  Berkowitz & Rosenberg MDs  West Penn Eye Associates PC  Everett & Hurite Ophthalmic Association  West Penn Eye Associates PC  West Penn Eye Associates PC  East Suburban Ophthalmic Associates  East Suburban Ophthalmic Associates  Robinson Eye Center & Advanced Ophthalmology East  East Suburban Ophthalmic Associates  East Suburban Ophthalmic Associates  Pittsburgh Eye Associates PC  William J McVay MD  Drs Caputo & Hanna  Drs Caputo & Hanna  Retina Vitreous Consultants Inc  Retina Vitreous Consultants Inc  Retina Vitreous Consultants Inc  Retina Vitreous Consultants Inc  Retina Vitreous Consultants Inc  Retina Vitreous Consultants Inc  Pittsburgh Oculoplastic Assoc  Pittsburgh Oculoplastic Assoc  Pittsburgh Oculoplastic Assoc  Cataract & Laser Institute of Pennsylvania  UPMC Eye Center  UPMC Eye Center  UPMC Eye Center  UPMC Eye Center  UPMC Eye Center  UPMC Eye Center  UPMC Eye Center  Pittsburgh Oculoplastic Assoc  Dick Katzin MD  Barry D Moskowitz MD  Norman Edelstein MD  Everett & Hurite Ophthalmic Association  Everett & Hurite Ophthalmic Association  Everett & Hurite Ophthalmic Association  Everett & Hurite Ophthalmic Association  Everett & Hurite Ophthalmic Association  Everett & Hurite Ophthalmic Association  Everett & Hurite Ophthalmic Association  Associated Eye Physicians & Surgeons  Associated Eye Physicians & Surgeons  Miguel J Quintero MD  Allegheny Ophthalmic & Orbital Associates PC  Allegheny Ophthalmic & Orbital Associates PC  Allegheny Ophthalmic & Orbital Associates PC  Allegheny Ophthalmic & Orbital Associates PC  Allegheny Ophthalmic & Orbital Associates PC  Allegheny Ophthalmic & Orbital Associates PC  Allegheny Ophthalmic & Orbital Associates PC  Frank X Stanish MD  Dr Anna B Miller Eye Care Center  Hartman Ophthalmic Associates  Allegheny Ophthalmology Associates  Allegheny Ophthalmology Associates  Associates In Ophthalmology  Associates In Ophthalmology  Associates In Ophthalmology  Associates In Ophthalmology  Karlik Ophthalmology  Karlik Ophthalmology  Karlik Ophthalmology  North Park Ophthalmology  North Park Ophthalmology  North Park Ophthalmology  Chandrappa S Reshmi MD  David J Kobaly MD  Lisa M Nath MD LLC  South Hills Eye Associates Ltd Penn Hills, PennsylvaniaUpcoming Local Events2012-06-02
2012-06-02
2012-06-02
2012-06-17
2012-06-17
2012-06-17
2012-06-17
2012-09-01
2012-09-30
2012-11-11
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 Penn Hills
Nearby Penn Hills Hospitals *HEALTHSOUTH Harmarville Rehabilitation Hospital UPMC St Margaret VA Pittsburgh Healthcare System LifeCare Hospitals of Pittsburgh Main Campus Transitional Infant Care Hospital The Children's Institute UPMC Shadyside Western Pennsylvania Hospital UPMC Braddock The Western Pennsylvania Hospital Forbes Regional Campus HEALTHSOUTH Hospital of Pittsburgh Children's Hospital of Pittsburgh UPMC Presbyterian Magee-Womens Hospital UPMC Mercy UPMC Southside Allegheny General Hospital Kindred Hospital Pittsburgh North Shore Alle-Kiski Medical Center Select Specialty Hospital McKeesport UPMC McKeesport UPMC Passavant Allegheny General Hospital Suburban Campus LifeCare Hospitals of Pittsburgh North Campus Jefferson Regional Medical Center Ohio Valley General Hospital St Clair Hospital Westmoreland Excela Health Hospital at Jeannette Heritage Valley Sewickley Hospital UPMC Passavant Cranberry Mayview State Hospital Southwood Psychiatric Hospital HEALTHSOUTH Rehabilitation Hospital of Sewickley Westmoreland Regional Hospital Kindred Hospital Pittsburgh Monongahela Valley Hospital Butler Memorial Hospital Canonsburg General Hospital ACMH Hospital Butler VA Medical Center Latrobe Area Hospital Select Specialty Hospital Greensburg Frick Hospital Kindred Hospital at Heritage Valley Medical Center of Beaver Torrance State Hospital The Washington Hospital Ellwood City 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
