Electroretinography Center - Saint Cloud, MN
Saint Cloud 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 Saint Cloud * Saint Cloud Eye Clinic  Saint Cloud Eye Clinic  Saint Cloud Eye Clinic  Eye Surgeons  Eye Surgeons  Eye Surgeons  Eye Surgeons  Eye Surgeons  Eye Surgeons  VitreoRetinal Surgery PA  VitreoRetinal Surgery PA  VitreoRetinal Surgery PA  Northern Eye Center  West Metro Ophthalmology PA  West Metro Ophthalmology PA  Edina Eye Physicians & Surgeons  Edina Eye Physicians & Surgeons  Regional Eye Specialists  Regional Eye Specialists  Crosby Eye Clinic  Crosby Eye Clinic  Crosby Eye Clinic  Edina Eye Physicians & Surgeons  Lakeview Clinic Waconia  Northwest Eye Clinic PA  Northwest Eye Clinic PA  Northwest Eye Clinic PA  Northwest Eye Clinic PA  Northwest Eye Clinic PA  Northwest Eye Clinic PA  Northwest Eye Clinic PA  Northwest Eye Clinic PA  Northwest Eye Clinic PA  Minnesota Eye Consultants PA  Minnesota Eye Consultants PA  Northwest Eye Clinic PA  Minnesota Eye Consultants PA  North Suburban Eye Specialists  North Suburban Eye Specialists  North Suburban Eye Specialists  North Suburban Eye Specialists  Consultative Eye Care  Consultative Eye Care  Consultative Eye Care  Minnesota Eye Consultants PA  VitreoRetinal Surgery PA  VitreoRetinal Surgery PA  Minnesota Eye Consultants PA  West Metro Ophthalmology PA  West Metro Ophthalmology PA  VitreoRetinal Surgery PA  Minnesota Eye Consultants PA  VitreoRetinal Surgery PA  Cambridge Medical Center  Cambridge Medical Center  Cambridge Medical Center  Cambridge Medical Center  Park Nicollet Clinic Chanhassen  Family Eye & ENT Center  West Metro Ophthalmology PA  West Metro Ophthalmology PA  Edina Eye Physicians & Surgeons  Edina Eye Physicians & Surgeons  HealthPartners Como Clinic  HealthPartners Bloomington Clinic  HealthPartners West Clinic  Columbia Park Medical Group Fairview Health Services  Columbia Park Medical Group Fairview Health Services  Park Nicollet Clinic St Louis Park Ophthalmology  Park Nicollet Clinic St Louis Park Ophthalmology  Park Nicollet Clinic St Louis Park Ophthalmology  Park Nicollet Clinic St Louis Park Ophthalmology  Park Nicollet Clinic St Louis Park Ophthalmology  Park Nicollet Clinic St Louis Park Ophthalmology  Park Nicollet Clinic St Louis Park Ophthalmology  Edina Eye Clinic PA  Edina Eye Clinic PA  Edina Eye Clinic PA  Edina Eye Clinic PA  Eye Care Associates PA  Eye Care Associates PA  Eye Care Associates PA  Eye Care Associates PA  Eye Care Associates PA  Eye Care Associates PA  Eye Care Associates PA  Eye Care Associates PA  Minnesota Ophthalmic Plastic Surgery Specialists  Minnesota Ophthalmic Plastic Surgery Specialists  Jonathan E Pederson MD  Ophthalmology Associates  Ophthalmology Associates  Ophthalmology Associates  Ophthalmology Associates  Ophthalmology Associates  Ophthalmology Associates  Ophthalmology Associates  Ophthalmology Associates  Ophthalmology Associates  Hennepin Faculty Associates Eye Clinic Saint Cloud, MinnesotaUpcoming Local Events2012-06-09
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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 Saint Cloud
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