Binasal occlusion

Binasal Occlusion is a non-surgical, non-pharmaceutical treatment method used to manage and improve certain visual and perceptual conditions. This method involves the partial occlusion of both nasal visual fields using semi-opaque or opaque materials.

Overview

Binasal Occlusion is a technique used in Optometry and Neurology to treat a variety of conditions such as Convergence Insufficiency, Visual Midline Shift Syndrome, and Hemianopsia. The treatment involves the application of semi-opaque or opaque materials to the nasal (inner) sides of both lenses in a pair of glasses. This occlusion reduces the visual input from the nasal fields, which can help to improve visual processing and perception.

Applications

Binasal occlusion is used in the treatment of several conditions, including:

• Convergence Insufficiency: This is a condition where the eyes do not work together properly when focusing on a near object. Binasal occlusion can help to reduce the symptoms of this condition by limiting the visual input from the nasal fields.

• Visual Midline Shift Syndrome: This condition can occur after a neurological event such as a stroke. It causes the perceived visual midline to shift, which can affect balance and spatial orientation. Binasal occlusion can help to realign the perceived visual midline.

• Hemianopsia: This is a condition where there is loss of vision in half of the visual field. Binasal occlusion can help to improve visual processing in individuals with this condition.

Procedure

The procedure for applying binasal occlusion involves the following steps:

1. An optometrist or neurologist will first conduct a thorough eye examination to determine if binasal occlusion is suitable for the patient.
2. If suitable, semi-opaque or opaque materials will be applied to the nasal sides of both lenses in a pair of glasses.
3. The patient will then be asked to wear these glasses for a specified period of time.
4. Follow-up appointments will be scheduled to monitor the patient's progress and make any necessary adjustments to the occlusion.

See Also

• Optometry
• Neurology
• Visual Field
• Visual Perception

References

Binasal occlusion Resources
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