Abstract
Ocular alignment and saccades were studied in seven patients with trochlear nerve pareses, before and after strabismus surgery. Prior to surgery, a position-dependent vertical ocular misalignment was present, and downward saccades were hypometric in the paretic eye. Strabismus surgery reduced the magnitude and position-dependence of the static misalignment. Saccade conjugacy improved in the patients with congenital pareses, and in the patient with a gradual-onset acquired paresis, but less improvement occurred in subjects with traumatic pareses. The post-operative change in saccade conjugacy relative to the change in static alignment correlated with pre-operative vertical vergence, suggesting that changes in saccade yoking depend on an interaction between saccades and vertical vergence.
Original language | English (US) |
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Pages (from-to) | 3255-3264 |
Number of pages | 10 |
Journal | Vision Research |
Volume | 35 |
Issue number | 23-24 |
DOIs | |
State | Published - Dec 1995 |
Keywords
- Adaptation
- Eye movements
- Human
- Strabismus
- Superior oblique
ASJC Scopus subject areas
- Ophthalmology
- Sensory Systems