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As at myopic presbyopia preventive tool and myopic presbyopia preventive tool pair it has
As at myopic presbyopia preventive tool and myopic presbyopia preventive tool pair it has
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机译：作为近视老花眼预防工具和近视老花眼预防工具，它具有
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摘要
PURPOSE:To provide a preventive implement for preventing shortsightedness and hyperopia and the preventing method using its implement by giving externally, what is called remote vision at a suitable interval in an adjacent vision state. CONSTITUTION:The preventive implement 1 is constituted by forming a pair of vision distance adjusting means 2 being variable to a non-lens state and a lens state for giving a prescribed focal distance, and also, forming a control means 4 for controlling both these vision distance adjusting means 2. Also, in a state that both the vision distance adjusting means 2 of this preventive implement are installed in spectacles and used, remote vision is given with regard to a prescribed time in an adjacent vision state by controlling programmatically the non-lens state and the lens state of both the vision distance adjusting means 2 by the control means 4.
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