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Old 13th October 2015 | 09:11
  #63 (permalink)  
serf
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Joined: Aug 2002
Posts: 466
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From: UK - The SD
NVG
Visual acuity unaided at night is 20-200, with NVG this is improved to 20-40, you choose..
20-200 is also the legal definition of blindness, I believe.
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