In angle-closure glaucoma (also closed-angle glaucoma , primary angle-closure glaucoma , acute glaucoma ) the iris bows forward and causes physical contact between the iris and trabecular meshwork , which blocks the outflow of aqueous humor from within the eye. This contact may gradually damage the draining function of the meshwork until it fails to keep pace with aqueous production, and the intraocular pressure rises. The onset of symptoms is sudden and causes pain and other symptoms that are noticeable; it is treated as a medical emergency. Unlike open-angle glaucoma, angle-closure glaucoma is a result of the angle between the iris and cornea closing. This tends to occur in the far-sighted , who have smaller-than-normal anterior chambers, making physical contact between the iris and trabecular meshwork more likely.
By contrast, the heated battle between Hillary Clinton and Bernie Sanders engaged Democratic voters for longer. Less than a day before the final five states held their primaries, the Associated Press reported that Clinton already had clinched the nomination . But turnout in the five primaries held June 7 didn’t appear to be affected, averaging % compared with an average of % for the preceding 31 contests. (The District of Columbia will hold its Democratic primary June 14, but there likely won’t be enough voters there to significantly change the nationwide numbers.)