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Electroretinography, is used to measure the electrical responses of various cell types in the retina, including the light-sensitive cells (rods and cones) and the ganglion cells. Electrodes are placed on the cornea and the skin near the eye. During a recording, the patient is watching a standardized stimulus and the resulting signal is interpreted in terms of its amplitude (voltage) and time course. Stimuli include flashes (flash ERG) and reversing checkerboard patterns (pattern ERG). Applications are predominantly in ophthalmology, where the electroretinogram (ERG) is used for the diagnosis of various retinal diseases.
Relevant Specialties
Paediatric Ophthalmology
Medical Conditions
Retinitis pigmentosa
Retinitis pigmentosa sine pigmento
Retinitis punctata albescens
Leber's congenital amaurosis
Gyrate atrophy of the retina and choroid
Goldman-Favre syndrome
X-linked juvenile retinoschisis
Cone dystrophy
Disorders mimicking retinitis pigmentosa
Usher syndrome
Retinal detachment
Diabetic retinopathy
Central retinal vein occlusion

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