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Strabismus and the Oculomotor System: Insights from Macaque Models
1College of Optometry, University of Houston, Houston, Texas 77204;
Annual Review of Vision Science
|May 24, 2017
Summary
Disrupting infant binocular vision causes strabismus and eye movement issues. Neural studies reveal disrupted calibration and reduced sensitivity in brain areas controlling eye alignment and movement.
Area of Science:
- Neuroscience
- Ophthalmology
- Developmental Biology
Background:
- Disrupting binocular vision in infancy results in strabismus, sensory deficits, and oculomotor abnormalities.
- Animal models are crucial for studying strabismus, offering unique advantages and disadvantages for research.
Purpose of the Study:
- To investigate the neural underpinnings of strabismus and associated visual and oculomotor deficits.
- To understand the role of different brain areas in mediating strabismic conditions and eye movement abnormalities.
Main Methods:
- Utilizing animal models to study the effects of disrupted binocular vision.
- Analyzing neural responses in visual and oculomotor brain structures.
Main Results:
- Identified involvement of multiple brain areas in horizontal misalignment, dissociated deviations, and abnormal eye movements like nystagmus.
- Observed disrupted calibration, reduced sensitivity, and poorer specificity in neural responses compared to normal development.
Conclusions:
- Neural oculomotor structures are intimately involved in various aspects of strabismus.
- Cellular responses in visual and oculomotor areas show impaired calibration and specificity, contributing to sensory deficits and eye movement abnormalities.
