ZR-0203 Home vision training, adjustable pupillary distance, red green flipper, butterfly glasses, vision adjustment glasses, double-sided glasses

Adjust sensitivity to train red and green reading units.

The red and green double-sided lenses is used to match the double-sided lens vision card and alphabet. It is used to adjust sensitivity, train red and green reading units, perform disinhibition and adjustment function training, and connect the hand and eye for training disinhibition and fine positioning ability.