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Assessing Binocular Central Visual Field and Binocular Eye Movements in a Dichoptic Viewing Condition
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Correcting intermittent central suppression improves binocular marksmanship.
Military Medicine
|May 9, 2007
Summary
Intermittent central suppression (ICS), a vision defect, impairs aiming accuracy. Therapy improved binocular vision, making one-eyed and two-eyed marksmanship equally accurate.
Area of Science:
- Ophthalmology
- Neuroscience
- Sports Science
Background:
- Intermittent central suppression (ICS) is a binocular vision deficit.
- ICS causes intermittent loss of central visual sensation, potentially leading to aiming errors.
Observation:
- Marksmanship accuracy was compared between monocular (one-eyed) and binocular (two-eyed) conditions.
- This comparison was performed before and after therapy for ICS in an Army ROTC cadet.
Findings:
- Before treatment, monocular marksmanship significantly outperformed binocular marksmanship.
- Following successful ICS therapy, binocular and monocular marksmanship accuracies became virtually identical.
Implications:
- Correcting ICS enhances visual stability and binocularity.
- Improved visual stability directly translates to improved aiming accuracy in tasks like marksmanship.
