1.   As metabolic activity begins to increase in late winter, fluid pressure also begins to build and the sap starts moving upward in the tree.

2.   A few more tests confirmed that Rafferty had glaucoma, a disease in which too much fluid pressure builds up inside the eye and damages the optic nerve.

3.   Glaucoma involves damage to the optic nerve, often from too much fluid pressure in the eye.

4.   In a disc-brake system, the fluid pressure moves the piston against the back of the brake pad, forcing it against the spinning rotor.

5.   Repeated studies demonstrate convincingly that marijuana protects vision by lowering that fluid pressure.

6.   Over-production or obstruction of the drainage system causes fluid pressure and can damage the nerves of the retina.

7.   The shunt was inserted at the Mayo Clinic this summer to relieve fluid pressure on the brain, a condition called normal pressure hydrocephalus.

8.   The shunt relieves fluid pressure on his brain, a condition called normal pressure hydrocephalus.