That's easy, because my contacts or glasses place no burden on you whatsoever.
...so what do we do when quadriplegics get butt-hurt over the NEW symbol? what about old, arthritic people? folks with NO legs who apparently aren't even represented? Why are you making fun of Stephen Hawking?
If this is the kind of stuff people get upset over, then they aren't busy enough getting stuff done in their own lives.
you don't need to put up signs for people with glasses?