Final answer:
The primary objective of the nurse's instructions for the client with glaucoma is to maintain intraocular pressure at a reduced level.
Step-by-step explanation:
The nurse is preparing instructions based on the primary objective of maintaining intraocular pressure at a reduced level for the client with glaucoma. Glaucoma is a condition characterized by the buildup of fluid pressure in the eye, and maintaining a reduced intraocular pressure is crucial in managing the disorder. To assess the intraocular pressure, a noncontact approach using a puff of air is commonly used to measure the force needed to indent the eye. If the pressure is high, the eye will deform less and rebound more vigorously than normal.