Unless they passed some new reg I am unaware of, the visor is considered eye protection enough in B.C. .
While it doesn't provide the best protection, trust me I know, it is essentially a balancing act...
When wearing shades in cold wet climes,such as these boys and myself, and many of you work regularly, one has to balance the safety of being able to see clearly, it can be very tough to keep the shades from fogging over completely, I have tried all the tricks, seems they are just that, tricks, in the end the shades often get tossed out of sheer frustration.
Hence the screen is our primary PPE for the eyes. Its been a few years since I had a look at the regs so, so please do not quote me on this, and please do correct me If I am wrong. But I know working with safety shades in cool wet humid climes, when you are working up a good head of steam yourself, can be a recipe for disaster if one is not careful.
Best workaround I have found is having a pair of shades in a soft/hard holder that you can then clip to your belt, then you can slip em on, make your cuts, and when they start to fog over, slip them back in the case.
This way your not avoiding making cuts that may spray sawdust in your face, or god forbid closing your eyes as you cut.
Plus every cool climber needs to be seen in shades as they watch the top of the tree sail down to the ground......don't they ?
Safety first,
-Grais.