Prospective comparison of convergence insufficiency and normal binocular children on CIRS symptom surveys. Convergence Insufficiency and Reading Study (CIRS) group

Optom Vis Sci. 1999 Apr;76(4):221-8. doi: 10.1097/00006324-199904000-00025.


Purpose: To test the validity-related evidence of a child and a parent symptom survey developed by the Convergence Insufficiency and Reading Study (CIRS) group.

Methods: A case comparison method was used to measure differences in symptoms between 14 school-aged children (ages 8 to 13 years) with Convergence Insufficiency (CI) and 14 children with normal binocular vision (NBV).

Results: A pooled t-test indicated that CI children and their parents scored higher than the NBV children and their parents on the child's survey (p<0.001) and parent's survey (p<0.001), respectively. CI children also scored significantly higher (p<0.03) on the Conners' Rating Scale for Parents.

Conclusions: The results suggest that the CIRS symptom survey is a valid instrument for differentiating CI children from those with normal binocular vision. Additionally, children in this age group were able to respond to a broad range of symptom questions associated with CI.

Publication types

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

MeSH terms

  • Adolescent
  • Child
  • Child Behavior
  • Convergence, Ocular
  • Exotropia / diagnosis*
  • Exotropia / psychology
  • Female
  • Health Status Indicators
  • Humans
  • Male
  • Observer Variation
  • Prospective Studies
  • Quality of Life
  • Reading
  • Reproducibility of Results
  • Surveys and Questionnaires
  • Vision, Binocular*
  • Visual Acuity