Because gonorrhea affects the area of infection and when it comes to sex that is normally the vagina, anal cavity or mouth. Unless your friend got ejaculatory fluid in her eye then she would not have it in her eye (and even that would be rare).
And STD's are not passed from enviromantal objects.
Also you found out that she had gonorrhea, I am sure she was treated for it. It is very curable.
That you for your response Joggen. But how sure are you? Im just so paranoid!
The exposure that you describe is not a risk for gonorrhea..