Primary angle-closure glaucoma. A review of provocative tests.

A PROVOCATIVE test is one that "calls forth" a particular response under a defined set of conditions. For many years, a rise in intra-ocular pressure has been known to follow various circumstances. In attempts to detect glaucoma before serious eye disease occurred or to assess its control, various provocative tests have been elabo- rated (Leydhecker and Miller, 1949).