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Measure lens dioptre directly and accurately, internal reading type. -
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help to train vergence system -
help to train vergence system -
help to train vergence system, easy to carry -
help to train vergence system, easy to carry -
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Move smoothly, lockable wheels to keep stand -
Move smoothly, lockable wheels to keep stand -
Used to lay refractor, slit lamp, optometry meter and so on.
