Polarized Variable Vectograph: Dart Board

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The Dartboard Polarized Variable Vectograph offers a three-dimensional picture used to strengthen the binocular system and provides base-in and/or base-out vision training. Differe nt objects in the vectograph are at varying depth levels (degrees of arc) and image orientation. Includes the right & left vectographs, a guide, and standard polarized glasses. Show more