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electroretinography
Indications:
1) inherited retinal disease
- retinitis pigmentosa
- retinitis punctata albescens
- Leber's congenital amaurosis
- choroideremia
- gyrate atrophy of the retina & choroid
- Goldman-Favre syndrome
- congenital stationary night blindness
- X-linked juvenile retinoschisis
- achromatopsia
- cone dystrophy
- Usher Syndrome
2) other retinal disease
- diabetic retinopathy
- ischemic retinopathies including
- central retinal vein occlusion
- retinal branch vein occlusion
- sickle cell retinopathy
- toxic retinopathy
- Plaquenil
- Vigabatrin
- retinal detachment
- eye injury
- vitreous hemorrhage
3) especially useful in conditions where the fundus cannot be visualized
Procedure:
- measures electrical responses of retina
- electrodes are usually placed on the cornea & the skin near the eye
- during a recording, the patient's eyes are exposed to standardized stimuli & the resulting signal is displayed & recorded
- signals are measured in microvolts or nanovolts
General
electrooculography
References
- Wikipedia: Electroretinography
http://en.wikipedia.org/wiki/Electroretinography