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For B1 criteria of rrb technician apply

2018-02-23 11:07:50
What is the meaning of power of lens not to exceed 4D? Is it negative 4 Power of spectical??
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Answers (2)

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It means +or--4.including cylinder..

Answered2018-02-24 15:08:51

YESNO

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Hello I can understand your concern but information provided by you is incomplete Kindly share your glasses prescription or case file so that I may guide you better Regards

Answered2018-02-23 11:35:44

YESNO

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