“…Several studies have shown the effect of water drinking on IOP, and the importance of the Water Drinking Test as a provocative test for narrow-angle glaucoma has been debated. [ 7 ] In addition, changes in corneal biomechanics and corneal thickness also can directly affect glaucoma diagnosis and treatment. [ 8 ] It is thus important to look at corneal biomechanical properties that are independent of IOP.…”