PPRuNe Forums - View Single Post - Collective Colour Vision Thread 4
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Old 26th Jul 2012, 12:36
  #51 (permalink)  
Scottish.CPL
 
Join Date: Aug 2007
Location: UK
Posts: 207
yeah i have been subject to dodgy equipment, the light is important in the ishihara, and the maintenance of the lanterns for sure, a dirty white can look green haha, ive seen that to, i also had a renewal at Gatwick for my faa, and struggled on a few plates cause they never had the light, and the optometrist never even said anything, go figure on that one..
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