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The elderly persons' vision is likely to get worse because of their age. When they do the peeling work for making meals, they will get their hands injured without enough attention. The combination of a paring knife and a magnifying glass, which means adding the latter to the former,guarantees the safety of the aged persons and is of simplicity.
Guangdong University of Technology
Guangzhou, China
Chao Zhong,
Guangdong University of Technology
Pei Xie,
Guangdong University Of Technology
Zhibin Liu,
Guangdong University Of Technology
Hanhao Liang,
Guangdong University Of Technology