Will it be OK to wear sunglasses after rhinoplasty?

Without special circumstances I allow my patients to use sunglasses or glasses 6 weeks after surgery. Every surgeon has their own special ways to do things so you need to ask you surgeon for the final answer.

I usually recommend not to use glasses for 6-8 weaks after rhinoplasty.  I have seen several cases of pinched-in nasal bones due to the use of heavy glasses.  You are 18 weeks post-op, so I don't think wearing a sunglasses should be a problem now.