Gulden Vergence Facility Prism Stick

Size: 3 Base In, 12 Base Out. Proudly made in the U.S.A.

The Vergence Facility Stick Prism is used to test for binocular vision disorders and symptoms.

Vergence Facility testing has been shown to be one of the most important methods of detecting patients with binocular vision disorders and symptoms. Diagnosis of non-strabismus binocular vision abnormalities can be improved through the use of vergence facility testing at near.