The CRA says yes, if you have a mobility impairment and a prescription:
http://www.cra-arc.gc.ca/tx/ndvdls/tpcs/ncm-tx/rtrn/cmpltng/ddctns/lns300-350/330/llwxpns-eng.html#w...
Canes are specifically referred to in the following (See 1.122 (l):(
http://www.cra-arc.gc.ca/tx/tchncl/ncmtx/fls/s1/f1/s1-f1-c1-eng.html#N10E99
Thank you very much for your response. I thought it would be accepted but wanted to make sure before claiming it.
Always a good idea to check first. Make sure to keep your receipt and any proof of the prescription (if that is not clearly indicated on the receipt).