Optical Flipper Plastic Adjustable Optometry Flip Lens Instrument with Vision Test Card, for Myopia, Amblyopia, Astigmatism, Hyperopia(±50)

Resin Len: The optical flipper adopts high definition resin lens, the lens is clear and transparent, and the diopter is accurate, convenient for use.
Vision Test Card: Comes with 5 matt film vision test cards, non reflective, clear and easy to read, meet your use needs, long service life. Important accessory for vision training.
Adjustable Interpupillary Distance: The adjustable range of interpupillary distance is 44‑87mm, can be used by adults and children. The optical flipper slide is stuck tight and will not slide when flipped up and down.
Plastic Material: Optometry flip adopts high strength plastic material, safe and eco friendly, firm and sturdy, light weight, easy to hold and operate.
Wide Range Of Applications: Suitable for myopia, amblyopia, astigmatism, hyperopia, 15 minutes of training every day, effectively improve vision, simple and practical.