Electroretinography Center - El Cajon, CA
El Cajon 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 El Cajon * Eye Physician Medical Group Inc  Eye Physician Medical Group Inc  Eye Physician Medical Group Inc  West Coast Eye Care Associates  John Kownacki MD  Kuljinder S Grewal MD  Childrens Pediatric Specialists Ophthalmology  Childrens Pediatric Specialists Ophthalmology  Scripps Clinic Torrey Pines Ophthalmology  Grossmont Eye Center  David J Najafi MD  Eye Associates of San Diego  Eye Associates of San Diego  Sharp Rees-Stealy Medical Group La Mesa West  West Coast Eye Care Associates  Drs Treger Cook & Brown  Drs Treger Cook & Brown  Drs Treger Cook & Brown  Kaiser Permanente Ophthalmology Dept  Kaiser Permanente Ophthalmology Dept  Kaiser Permanente Ophthalmology Dept  Kaiser Permanente Ophthalmology Dept  Precision Eye Care, AMC  Sharp Rees-Stealy Medical Group Otay Ranch  Sharp Rees-Stealy Medical Group Otay Ranch  San Diego Retina Associates  Children's Eye Center  Manuel Puig-Llano MD  San Diego Retina Associates  San Diego Retina Associates  Sharp Rees-Stealy Surgical Eye Consultants  San Diego Eye Center  Sharp Rees-Stealy Surgical Eye Consultants  Sharp Rees-Stealy Surgical Eye Consultants  Sharp Rees-Stealy Surgical Eye Consultants  Raymond Chan Ophthalmology  Advanced Eye & Laser Center Inc  Castillejos Eye Institute Medical Group  Castillejos Eye Institute Medical Group  The Eye Institute of California  The Eye Institute of California  Mark Stanton MD Inc  Eye Physicians Medical Surgical Center  Eye Physicians Medical Surgical Center  Eye Physicians Medical Surgical Center  Drs Couris Edwards & Burns  David C Campbell MD  Drs Couris Edwards & Burns  Drs Couris Edwards & Burns  Chris J Gualtieri MD APC  San Diego Eye Institute  California Retina Association  California Retina Association  Gary Prodanovich MD  Advanced Eye Care  San Diego Eye Institute  Eye Treatment Clinic  Drs Fulhorst & Warlen  Scripps Clinic Shiley Eye Center  Scripps Clinic Shiley Eye Center  Scripps Clinic Shiley Eye Center  Scripps Clinic Shiley Eye Center  Drs Fulhorst & Warlen  Sharp Rees-Stealy Medical Group Downtown Ophthalmology  Global Laser Vision  Global Laser Vision  Retina Consultants San Diego  Retina Consultants San Diego  Jeffrey R Lozier MD  Scripps Clinic Torrey Pines Ophthalmology  North County Ophthalmology Poway  Lillian Lee MD  North County Ophthalmology Poway  One to One Lasik  North County Eye Center  One to One Lasik  One to One Lasik  North County Eye Center  North County Eye Center  One to One Lasik  Nicholas A Zubyk MD  Sharp Rees-Stealy Medical Group Rancho Bernardo  Clearview Eye & Laser Medical Center  Advanced Opthamology Institute  Scripps Clinic Shiley Eye Center  Scripps Clinic Shiley Eye Center  Scripps Clinic Shiley Eye Center  Gordon Binder & Weiss Vision Institute  Scripps Clinic Shiley Eye Center  Scripps Clinic Shiley Eye Center  Scripps Clinic Shiley Eye Center  Scripps Clinic Shiley Eye Center  Scripps Clinic Shiley Eye Center  Gordon Binder & Weiss Vision Institute  William L Basuk MD  La Jolla Laser Vision and Eye Center  La Jolla Laser Vision and Eye Center  San Diego Vitreo Retinal  San Diego Vitreo Retinal  Associated Eye Surgeons Medical Group El Cajon, CaliforniaUpcoming Local Events2012-06-03
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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 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 El Cajon
Nearby El Cajon Hospitals *Sharp Grossmont Hospital Alvarado Hospital San Diego Rehabilitation Institute Promise Hospital of San Diego Kaiser Permanente San Diego Medical Center Paradise Valley Hospital Kindred Hospital San Diego Rady Children's Hospital San Diego Sharp Mary Birch Hospital for Women Sharp Memorial Hospital Sharp Mesa Vista Hospital Naval Medical Center San Diego San Diego Hospice Scripps Mercy Hospital Vibra Hospital of San Diego UCSD Medical Center Hillcrest Sharp Chula Vista Medical Center Scripps Mercy Hospital Chula Vista Bayview Behavioral Health Campus Sharp Coronado Hospital San Diego County Psychiatric Hospital VA San Diego Health Care System Pomerado Hospital Aurora Behavioral Healthcare UCSD Thornton Hospital Scripps Memorial Hospital La Jolla La Jolla Nursing & Rehabilitation Center Scripps Green Hospital Palomar Medical Center Encinitas Nursing & Rehabilitation Scripps Memorial Hospital Encinitas Tri-City Medical Center 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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