electroretinography

Indications

• 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
• 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
• 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

More general terms

• electrooculography