Vergence in mild traumatic brain injury: A pilot study

Dora Szymanowicz, Kenneth J. Ciuffreda, Preethi Thiagarajan, Diana P. Ludlam, Wesley Green, Neera Kapoor

Research output: Contribution to journalArticlepeer-review

42 Scopus citations


Vergence dysfunction in individuals with mild traumatic brain injury (mTBI) may have a negative effect on quality of life, functional abilities, and rehabilitative progress. In this study, we used a range of dynamic and static objective and subjective measures of vergence to assess 21 adult patients with mTBI and nearwork symptoms. The results were compared with 10 control adult subjects. With respect to dynamic parameters, responses in those with mTBI were slowed, variable, and delayed. With respect to static parameters, reduced near point of convergence and restricted near vergence ranges were found in those with mTBI. The present results provide evidence for the substantial adverse effect of mTBI on vergence function.

Original languageEnglish
Pages (from-to)1083-1100
Number of pages18
JournalJournal of Rehabilitation Research and Development
Issue number7
StatePublished - 2012


  • Brain injury
  • Head injury
  • Rehabilitation
  • TBI
  • Traumatic brain injury
  • Vergence
  • Vergence dysfunction
  • Vision
  • Vision rehabilitation
  • Visual dysfunction


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