Description High-quality flippers made with glass lenses. Ideal for screening hyperopia and demonstrating lenses, this set lets you test and train accommodative facility, accommodative rock, positive/negative relative accommodation, and convergence/fusional convergence reserves. Lenses are made of durable glass with sturdy plastic handles, and diopter powers are clearly marked. Includes one plus and one minus pair, available from ±0.50 to ±3.00 D in 0.50 D steps.
