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Yoked prism lenses for children with neurodisabilities

Published April 2014

Download the full evidence summary PDF: Yoked prism lenses and eye care

PLEASE NOTE: This summary was produced more than 4 years ago. Information provided may be out of date. If you think it would be helpful to update this summary please contact us at

What were we asked?

Two questions were received about the use of yoked prism lenses; one asked if there was any reliable research about their use in glasses for children with cerebral palsy and the other asked if the use of yoked prism glasses was effective in the treatment of toe-walking in children with autism.

Key findings

  • Children with disabilities are more likely than non-disabled children to have visual problems.
  • Yoked prism lenses are offered as part of a treatment for a variety of visual problems.
  • There is insufficient scientific evidence of the effectiveness of yoked prism lenses.
  • American health organisations do not endorse use of prism lenses for children with learning disabilities.
  • Research is needed to establish effective strategies for improving the vision of children with neurodisabilities.

This information is produced by PenCRU researchers and reviewed by external experts. The views expressed are those of PenCRU at the University of Exeter Medical School and do not represent the views of the Cerebra charity, or any other parties mentioned. We strongly recommend seeking medical advice before undertaking any treatments/therapies.