Electroretinography Center - Mesa, AZ
Mesa 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 Mesa * Valley Eye Specialists  Valley Eye Specialists  Valley Eye Specialists  Valley Eye Specialists  Alois Falkenstein MD  East Valley Glaucoma  Southwestern Eye Center  Southwestern Eye Center  Southwestern Eye Center  Southwestern Eye Center  Southwestern Eye Center  Southwestern Eye Center  Southwestern Eye Center  Southwestern Eye Center  Southwestern Eye Center  Arizona Pediatric Eye Specialists PLC  Grant W Heinz MD PC  Arizona Pediatric Eye Specialists PLC  Arizona Pediatric Eye Specialists PLC  Woolf Eye & Laser Clinic  Barnet Dulaney Perkins Eye Center  Ronald D Cox MD  Barnet Dulaney Perkins Eye Center  Barnet Dulaney Perkins Eye Center  Ophthalmic Surgeons & Physicians Ltd  Ophthalmic Surgeons & Physicians Ltd  Ophthalmic Surgeons & Physicians Ltd  Ophthalmic Surgeons & Physicians Ltd  Advanced Laser & Eye Center of Arizona  Arizona Eye Center  The Retina Group  Drs Ford & Caserta  Drs Ford & Caserta  Jeffrey P Edelstein MD  Desert Vista Eye Specialists  Desert Vista Eye Specialists  Brian T Rose MD PLC  Retina Associates SW PC  Associated Ophthalmologists Ltd  Scottsdale Eye Physicians & Surgeons  Scottsdale Eye Physicians & Surgeons  Arizona Pediatric Eye Specialists PLC  Dennis C Cooper MD  Associated Ophthalmologists Ltd  Chandler Eye Center  Associated Ophthalmologists Ltd  Associated Ophthalmologists Ltd  Associated Ophthalmologists Ltd  William McLeish MD LLC  East Valley Ophthalmology  East Valley Ophthalmology  East Valley Ophthalmology  Vision Center  Cornea Consultants of Arizona  Cornea Consultants of Arizona  Cornea Consultants of Arizona  Barnet Dulaney Perkins Eye Center  Phoenix Retina Center  Phoenix Retina Center  Phoenix Retina Center  Q Vision  Affiliated Eye Surgeons  Affiliated Eye Surgeons  Affiliated Eye Surgeons  Affiliated Eye Surgeons  Tozer Eye Center  Tozer Eye Center  Brems Eye Center  Ophthalmic Surgeons & Physicians Ltd  Associated Retina Consultants LTD  Mayo Clinic Ophthalmology  Mayo Clinic Ophthalmology  Mayo Clinic Ophthalmology  Mayo Clinic Ophthalmology  Schwartz Laser Eye Center  Richard Isenberg MD  Schwartz Laser Eye Center  Schwartz Laser Eye Center  David R Johnson MD  George R Reiss MD PC  Gary Hall Laser Center PC  M Kathleen Carriker MD  Biltmore Eye Physicians PC  Biltmore Eye Physicians PC  Biltmore Eye Physicians PC  Paul M Petelin Jr MD  Neuro-Ophthalmology Ltd  Arizona Pediatric Eye Specialists PLC  Barnet Dulaney Perkins Eye Center  Barnet Dulaney Perkins Eye Center  Barnet Dulaney Perkins Eye Center  Barnet Dulaney Perkins Eye Center  Arizona Pediatric Eye Specialists PLC  Misha Faustina MD  Horizon Eye Specialist & Lasik Center  Associated Ophthalmologists Ltd  Buena Vista Ophthalmologists PC  Horizon Eye Specialist & Lasik Center  James R Meador Jr. MD  Buena Vista Ophthalmologists PC Mesa, ArizonaMesa is a city in Maricopa County, in the U.S. state of Arizona and is a suburb of Phoenix, within the Phoenix Metropolitan Statistical Area. Although it has a large population, Mesa is a "bedroom community." Neighborhoods across the city are diverse - some areas have experienced urban blight, while others feature elaborate custom homes. Mesa is also best known as having one of the highest check cashing per capita indexes nationwide. Upcoming Local Events2012-07-14
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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 Mesa
Nearby Mesa Hospitals *Desert Vista Hospital Banner Desert Medical Center Arizona Spine & Joint Hospital Tempe St Luke's Hospital Arizona Orthopedic Surgical Hospital Banner Behavioral Health Hospital Scottsdale Healthcare Osborn Select Specialty Hospital Scottsdale Banner Gateway Medical Center Banner Baywood Medical Center Banner Baywood Heart Hospital Chandler Regional Hospital Mercy Gilbert Medical Center Arizona State Hospital Maricopa Medical Center HEALTHSOUTH Scottsdale Rehabilitation Hospital Scottsdale Healthcare Shea Kindred Hospital Scottsdale Los Ninos Hospital St Luke's Behavioral Health Center St Luke's Medical Center Youth Development Institute Mountain Vista Medical Center Arizona Heart Hospital Phoenix Children's Hospital Banner Good Samaritan Medical Center Banner Good Samaritan Rehabilitation Phoenix Indian Medical Center Select Specialty Hospital Phoenix Downtown Carl T Hayden VA Medical Center Phoenix Memorial Health Care Center Promise Hospital of Phoenix Kindred Hospital Phoenix Select Specialty Hospital Phoenix St Joseph's Hospital & Medical Center John C Lincoln Hospital North Mountain Phoenix Baptist Hospital Surgical Specialty Hospital of Arizona Scottsdale Healthcare Thompson Peak Paradise Valley Hospital Mayo Clinic Hospital Maryvale Hospital Medical Center John C Lincoln Hospital Deer Valley Banner Thunderbird Medical Center Gila River Health Care Huhukam Memorial Hospital Banner Estrella Medical Center HEALTHSOUTH Valley of the Sun Rehabilitation Hospital Arrowhead Hospital Banner Boswell Medical Center West Valley 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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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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