title: Vergence in mild traumatic brain injury: a pilot study.
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.
authors: Departments of Biological and Vision Sciences, State University of New York College of Optometry, New York, NY 10036, USA.
authors: Dora
authors: D
authors: Szymanowicz
authors: Kenneth J
authors: KJ
authors: Ciuffreda
authors: Preethi
authors: P
authors: Thiagarajan
authors: Diana P
authors: DP
authors: Ludlam
authors: Wesley
authors: W
authors: Green
authors: Neera
authors: N
authors: Kapoor
mesh_terms: D000328:Adult; D000368:Aged; D001930:Brain Injuries / Q000150:complications / Q000503:physiopathology*; D016022:Case-Control Studies; D003290:Convergence, Ocular; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D015835:Ocular Motility Disorders / Q000209:etiology / Q000503:physiopathology*; D010865:Pilot Projects; D011788:Quality of Life; D012720:Severity of Illness Index