glaucoma
"so far in 1st 6 weeks has lowered my eye pressure from 23  in both eyes to 14 in both eyes. It is a beta blocker so also can lower your blood pressure.  I've reduced that effect by putting pressure at side of nose-corner of eyes with my fingers, where  medicine can enter the blood stream. I recommend those that don't do this technique, see how to do it correctly on some instructional you tube videos."