Diagnosys LLC

Model Stepwise Sweep VEP -Visual Acuity Assessment Module

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The Diagnosys Stepwise Sweep VEP (ssVEP) module is an automated method to assess visual acuity objectively using visual evoked potential (VEP) techniques. The Diagnosys ssVEP module is based on methods developed and published by Bach, et al1,2 and runs on a wide range of Diagnosys systems.

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Ultimate performance

  • Broad range of acuity: 20/20 to over 20/400 (6/6 to over 6/126)
  • Automatic noise-corrected response amplitudes
  • High performance pattern onset VEP methodology
  • Utilizes custom engineered, high performance monitors
  • System and VEP techniques consistent with ISCEV standards

Automated and easy to use

  • Fully automated visual acuity estimate and confidence limit
  • Standard protocol takes only 4 minutes per eye to run
  • Preset protocols for a variety of acuity ranges
  • Easy to follow instructions
  • Fully automated as well as manual selection modes

  • Unexplained visual loss
  • Pediatric
  • Non-organic visual loss assessment
  • Functional neurological symptom disorder
  • Objective assessment when subjective is questionable