Gottlieb Visual Field Awareness System

Help for the Hemianopic Field Loss Patient


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The application of a prism to enhance visual field has existed for many decades. However, the development of the Gottlieb Visual Field Awareness System has greatly improved our success rates in aiding patients after hemianoptic visual field loss. Gottlieb's novel approach was to abandon the traditional equal prism in each side in a straight line and rather place a small wafer of base out prism in a round shape on the side of the visual field loss. The idea is to shift the image into the patient's still functional field as the patient makes natural scanning movements. (See the Gif Animation below.)

Animation Showing How the Gottlieb System Functions

This Gif animation demonstrates how the image missing to the right side is shifted back into the field of view of the patient when the Gottlieb Visual Field Awareness System is inserted.

Please allow 1 minute for animation to load.

Visual Field Awareness System has been helpful for patients with hemianopic field loss. The lens is mounted in one lens on the side of the loss. It shifts the image about twenty degrees nasally allowing it to be detected within the remaining functional field as the patients makes mild scanning movements. Following fitting with systems, we may refer patients back to their occupational therapist for scanning training.

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