Eye sight restorer device and method

作者: Fred E. Mehr

DOI:

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摘要: A device and method for relieving eye strain which uses a head band light is switched on off when the user's eyelids are shut. The user controls frequency with turned by means of hand-held battery pack switch. On-and-off switching continued in absence ambient until feels sufficient relief.

参考文章(1)
Frank C. Giannone, Eye treatment apparatus ,(1976)