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Published on: November 10, 2010
Clinical suppression in monkeys reared with abnormal binocular visual experience.
J M Wensveen1, R S Harwerth, E L Smith
1College of Optometry, University of Houston, Houston, TX 77204-6052, USA. opto2v@jetson.uh.edu
Vision Research
|May 10, 2001
Summary
Monkeys show clinical suppression with early abnormal binocular vision, linked to strabismus and anisometropia. This finding offers a valuable model for studying suppression development.
Area of Science:
- Neuroscience
- Ophthalmology
- Vision Science
Background:
- Abnormal binocular vision can lead to amblyopia and suppression in humans.
- Understanding the mechanisms of suppression is crucial for treating visual disorders.
Purpose of the Study:
- To investigate if monkeys exhibit clinical suppression in response to early abnormal binocular vision.
- To model the development of suppression in a non-human primate.
Main Methods:
- Monkeys were reared with alternating monocular defocus or optically induced strabismus.
- Dichoptic and monocular luminance increment thresholds were compared.
- Clinical suppression was assessed in the absence of amblyopia.
Main Results:
- Clinical suppression was observed in monkeys with strabismus and anisometropia (≥1.50 diopters).
- Suppression severity correlated with the magnitude of anisometropia.
- This demonstrates a primate model for studying visual suppression.
Conclusions:
- Monkeys exhibit clinical suppression similar to humans when exposed to early abnormal binocular vision.
- Anisometropia and strabismus are key factors in the development of suppression.
- This primate model allows for controlled manipulation of factors influencing suppression development.
