Physiological-Diplopia Cord™
(Similar to Brock String)
Inexpensive home use instrument for near training as well as to extend phy-dip training from near into distance. Utilizes physical diplopia for training suppression, binocularity and spatial localization. Heavy cord with colored beads. Sold by the dozen in 10' or 20' lengths.
10 Foot Lengths have 3 beads:
• Red
• Yellow
• Green
