The 801 Slide Set combines both vertical and horizontal targets. Variable fusional training is achieved for either vertical or lateral imbalances by simply rotating the targets and 550 holder 90 degrees. The Box-X-O anti-suppression check separates the vertical and lateral targets and alignment check, regardless of the orientation.
The 802 Slide Set has two horizontal targets with differing stereoscopic demands, and monocular clues for those who might have difficulty achieving or maintaining 3-D images.
