Near vision what is Sn: .6

2017-05-26 09:06:05
Sir what is aspects of medical standard of A2 standard in ntpc railway and what is near vision Sn: .6,.6 explain it in detail what is this and what is value in terms of 6/6 snellen chart procedure
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6/6 means normal vision.  Normal person can see the letters from six metres and  so can you. Snellens is the name of the chart which is shown to check vision at a distance of 6metres.

Answered2017-05-26 11:48:58

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