Yeah, this is just out of date. They only started printing the picture on the admit ticket a few tests ago. Used to have to print the ticket and then use a piece of scotch tape to attach the picture, lol.
Shave. It specifically talks about that in their guidelines for the photo. Don’t risk losing all your hard work over something so trivial! It’ll grow back!
Unless you look completely different than your picture, I don't imagine a proctor will be a dick about you not looking exactly like your picture. But yeah, if you have glasses on in your pic, bring glasses and wear them when they check your ticket.