Online First Nr134

Psychiatr. Pol. ONLINE FIRST Nr 134: 1–19

Published ahead of print 15 April 2019

DOI: https://doi.org/10.12740/PP/OnlineFirst/105229

Adrian Andrzej Chrobak, Janusz Kazimierz Rybakowski,
Maria Abramowicz, Maciej Perdziak, Wojciech Gryncewicz,
Anna Tereszko, Marta Włodarczyk, Sebastian Dziuda,
Magdalena Fafrowicz, Paweł Czarnecki, Zbigniew Soltys,
Marcin Siwek, Jan Krzysztof Ober, Tadeusz Marek, Dominika Dudek

FREE POLISH FULLTEXT:

Ruchy wergencyjne w chorobie afektywnej dwubiegunowej

FREE ENGLISH FULLTEXT:
Vergence eye movements in bipolar disorder

Summary
Aim. With respect to bipolar disorder (BD), previous research have demonstrated saccadic eye movements abnormalities, manifested mainly as an increase in reaction time (latency) in both prosaccadic and antisaccadic task. So far, there were no studies related to vergence eye movements in subjects with BD. Our primary aim was to evaluate vergence tracking performance in this clinical group. 
Methods. 30 patients with BD in remission and 23 healthy controls were enrolled. Subjects underwent optometric examination where near point of convergence was measured by the use of Wolff Wand. Instrumented convergence measurements were performed using infrared eye tracker and dedicated vergence stimuli generator.
Results. BD patients presented significantly higher average error between eyes’ convergence and convergence required to fixate the target and higher number of saccadic intrusions compared with healthy controls group. Principal component analysis performed on oculometric parameters revealed differences between BD patients and healthy controls. Significant correlations between the vergence disturbances and saccadic intrusions were found.
Conclusions. BD patients showed the alterations of the vergence eye movements similar to the disturbances of eye movements in the fronto-parallel plane. While the abnormalities of vergence eye movements in some mental disorders have been reported, we have for the first time objectively measured this phenomenon in BD.

ISSN 0033-2674 (PRINT)

ISSN 2391-5854 (ONLINE)


Psychiatria Polska
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