Electroretinography Center - Schenectady, NY
Schenectady 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 Schenectady * Nicholas Verola MD  Nicholas Verola MD  Philip Fraterrigo MD  Philip Fraterrigo MD  Philip Fraterrigo MD  Susan Kessler MD  Schenectady Eye Associates  Schenectady Eye Associates  The Center For Sight  Kennedy Ophthalmology  Kennedy Ophthalmology  Kennedy Ophthalmology  Mabel M Cheng MD  Bailey Filipp & Wakil MDs  Bailey Filipp & Wakil MDs  Retina Consultants At Great Oaks  Bailey Filipp & Wakil MDs  Adirondack Eye Care  Edward P Franks MD  Stasior & Stasior Eye Care Specialists  Stasior & Stasior Eye Care Specialists  Brass Eye Center  Northeast Eye Center  Brass Eye Center  Northeast Eye Center  Ramsey Elhosn MD  Jeffrey E Murad MD  Michael B Whalen MD & Peter J Duffy MD  Capital Region Retina PLCC  Capital Region Retina PLCC  Michael B Whalen MD & Peter J Duffy MD  Retina Consultants  Cornea Consultants of Albany  Retina Consultants  Gabriels & Gabriels MDs  Gabriels & Gabriels MDs  Glaucoma Practice of New York  Glaucoma Consultants of the Capital Region  Kansas Eye Surgery  Ophthalmic Plastic Surgery  Glaucoma Consultants of the Capital Region  Retina Consultants  Cornea Consultants of Albany  Glaucoma Consultants of the Capital Region  Children's Medical Eye Consultants  Children's Medical Eye Consultants  Cosmetic Laser Surgery of Albany PLLC  Capital Retina Associates PLLC  Glaucoma Services  Edward J Martin MD  Lawrence Perlmutter MD  The Center For Sight  The Center For Sight  Albany Eye Associates  Albany Eye Associates  Albany Eye Associates  Albany Eye Associates  Albany Eye Associates  Albany Eye Associates  Paul Austin MD  Michael E Freshman MD  Mark R Levy MD  Mark R Levy MD  Charles Rheeman MD  Charles Rheeman MD  Barbara W Wolner MD  Capitol Eye Care  Edwin A Davison Jr. MD  Saratoga Medical Associates  Saratoga Medical Associates  Paul & Pinto MD  Paul & Pinto MD  Saratoga Vitreo-Retinal Ophthalmology  Cataract Care Center  Adirondack Eye Care  F Franklin Westfall Jr. MD  Stephen Berch MD  Hudson Valley Ophthalmology  Hudson Valley Ophthalmology  Hudson Valley Ophthalmology  Eye Care Medicine & Surgery PC  Glenn Falls Eye Associates  Glenn Falls Eye Associates  Glenn Falls Eye Associates  Eye Associates  Ronald Hanovice MD  Eye Associates  Eye Associates  Eye Associates  Eye Associates  Grand Street Medical Associates  Stephen M Adalman MD  Bassett Healthcare Ophthalmology  Bassett Healthcare Ophthalmology  Bassett Healthcare Ophthalmology  Bassett Healthcare Ophthalmology  William J Senisi MD  Central New York Eye Physicians  Central New York Eye Physicians  Central New York Eye Physicians Schenectady, New YorkUpcoming Local Events2012-05-27
2012-06-16
2012-06-16
2012-06-17
2012-06-17
2012-08-18
2012-09-08
2012-10-07
2012-10-20
2012-11-04
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 Schenectady
Nearby Schenectady Hospitals *Ellis Hospital Ellis Hospital McClellan Campus Sunnyview Hospital & Rehabilitation Center Bellevue Woman's Hospital St Peter's Hospital Albany Memorial Hospital Capital District Psychiatric Center Albany Medical Center Stratton VA Medical Center at Albany Albany Medical Center South Clinical Campus St Mary's Hospital Troy Amsterdam Memorial Healthcare Samaritan Hospital St Mary's Hospital Amsterdam Four Winds Hospital Saratoga Saratoga Hospital Nathan Littauer Hospital Cobleskill Regional 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
