Preliminary results from the use of the novel Interactive binocular treatment (I-BiT) system, in the treatment of strabismic and anisometropic amblyopia

Eye (Lond). 2006 Mar;20(3):375-8. doi: 10.1038/sj.eye.6701883.


Background: We have developed a novel application of adapted virtual reality (VR) technology, for the binocular treatment of amblyopia. We describe the use of the system in six children.

Methods: Subjects consisted of three conventional treatment 'failures' and three conventional treatment 'refusers', with a mean age of 6.25 years (5.42-7.75 years). Treatment consisted of watching video clips and playing interactive games with specifically designed software to allow streamed binocular image presentation.

Results: Initial vision in the amblyopic eye ranged from 6/12 to 6/120 and post-treatment 6/7.5 to 6/24-1. Total treatment time was a mean of 4.4 h. Five out of six children have shown an improvement in their vision (average increase of 10 letters), including those who had previously failed to comply with conventional occlusion.

Conclusions: Improvements in vision were demonstrable within a short period of time, in some children after 1 h of treatment. This system is an exciting and promising application of VR technology as a new treatment for amblyopia.

Publication types

  • Evaluation Study
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Amblyopia / etiology
  • Amblyopia / physiopathology
  • Amblyopia / therapy*
  • Anisometropia / complications
  • Child
  • Child, Preschool
  • Computer Graphics
  • Humans
  • Male
  • Sensory Deprivation
  • Strabismus / complications
  • Therapy, Computer-Assisted / methods*
  • Treatment Failure
  • Treatment Outcome
  • Vision, Binocular
  • Visual Acuity