I think I have visine. I've never really cared except when I have to talk to my parents. I've talked to cops/professors/resident advisors/resident directors/various people in the community with FIERY red eyes. The only people that I keep things real low key for is my family. Anyways, when I use it 2 drops per eye, one in each corner at least 10 min before I see them. They don't get my eye's crystal clear, but I think I have perma allergies as my eyes are never crystal clear.