My son has closed angle gaucoma since birth. he is 16 and today he had slight bleeding in his eye. how do i connect with an opthalmologist as his current one couldnt see him today?

Where do you live?: If you are in a town that is large, there may be some glaucoma specialists available. But in a large city you could go to an ER as larger hospitals have an eye doctor on call. If you can see the bleeding, it is most likely a subconjunctival hemorrhage which is benign and will cause no problem. In that case you might wait until next week so his regular eye doctor can see if there is a problem.