Sustained convergence induced changes in phoria and divergence dynamics
نویسندگان
چکیده
منابع مشابه
Sustained convergence induced changes in phoria and divergence dynamics
PURPOSE The purpose of this study was to investigate how sustained convergence induces phoria adaptation and changes divergence dynamics. METHODS Near dissociated phoria and divergence step responses were recorded using an infrared eye movement monitor on four binocularly normal subjects. We tested three different adapting vergence positions (16 degrees , 6 degrees , and 0.5 degrees ) and mea...
متن کاملSustained Fixation Induced Changes in Phoria and Convergence Peak Velocity
PURPOSE This study sought to investigate the influence of phoria adaptation on convergence peak velocity from responses located at different initial vergence positions. METHODS Symmetrical 4° convergence step responses and near dissociated phoria (measured at 40 cm from the subject's midline) were recorded from six subjects with normal binocular vision using an infrared limbus tracking system...
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چکیده ندارد.
The relationship between phoria and the ratio of convergence peak velocity to divergence peak velocity.
PURPOSE The purpose of this study was to investigate the relationship between phoria and the dynamics of vergence eye movements as described by the ratio of convergence average peak velocity to divergence average peak velocity, termed the vergence peak velocity ratio. METHODS Phoria and vergence step responses were recorded. Three measures of phoria were assessed: baseline phoria, which is th...
متن کاملThe influence of vergence adaptation on open-loop vergence dynamics
The objectives of this experiment were to measure the effect of sustained convergence on the open-loop vergence peak velocity and open-loop vergence amplitude, and to assess the correlation between changes in the phoria and changes in open-loop vergence peak velocity induced by sustained convergence. Subjects sustained convergence on a target that required 12 degrees of convergence for 5 minute...
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ژورنال
عنوان ژورنال: Vision Research
سال: 2009
ISSN: 0042-6989
DOI: 10.1016/j.visres.2009.09.013