Journal of Rehabilitation Research & Development (JRRD)

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Volume 49 Number 7, 2012
   Pages 1083 — 1100

Abstract — Vergence in mild traumatic brain injury: A pilot study


Dora Szymanowicz, OD, MS;1 Kenneth J. Ciuffreda, OD, PhD;1* Preethi Thiagarajan, BS Optom, MS;1 Diana P. Ludlam, BS, COVT;1 Wesley Green, MS;1 Neera Kapoor, OD, MS2

Departments of 1Biological and Vision Sciences and 2Clinical Education, State University of New York College of Optometry, New York, NY

Abstract — 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.

Key words: brain injury, head injury, rehabilitation, TBI, traumatic brain injury, vergence, vergence dysfunction, vision, vision rehabilitation, visual dysfunction.

View HTML  ¦  View PDF  ¦  Contents Vol. 49, No. 7

This article and any supplementary material should be cited as follows:
Szymanowicz D, Ciuffreda KJ, Thiagarajan P, Ludlam DP, Green W, Kapoor N. Vergence in mild traumatic brain injury: A pilot study. J Rehabil Res Dev. 2012; 49(7):1083-1100.


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