The Tangent Wand holds test objects for tangent screen testing.
The test object is inserted into the fabric leaving only the object visible. Half turn rotation obscures the test object behind the wand. Alternating the rotation, objects can be made to disappear and reappear for a confirmation response.
The tangent screen is used to map a patient's peripheral vision by recording his/her response to test objects placed on the screen while the patient's stare is fixed on the center target. The 1-meter black felt screen is mounted on a spring roller with mounting brackets.