A nurse is evaluating discharge instructions for a client following a right cataract extraction. Which of the following client statements indicates the teaching is effective?

a) "Moderate to severe pain is expected." Mild discomfort or a sensation of something in the eye is common after cataract surgery, but moderate to severe pain is not expected. Significant pain may indicate complications such as infection or increased intraocular pressure.
b) "Resume usual activities immediately." The patient should avoid strenuous activities, bending, lifting, and sudden movements that could increase intraocular pressure or cause trauma to the eye.
c) "Always lie on the unaffected side." The patient should avoid sleeping on the operative side to prevent pressure on the eye. Lying on the unaffected side is encouraged, but the primary goal is to avoid pressure on the operated eye.
d) "Expect a small amount of bleeding." A small amount of bleeding or clear drainage may occur in the early postoperative period, which is typically not concerning unless it becomes excessive or persistent.
e) "Avoid pressure on the operative eye." Avoiding pressure on the operative eye is essential to prevent complications such as dislodging the lens or increasing intraocular pressure.

a) Ability to contract and relax the dilator muscle: This refers to the iris muscles, but it does not relate directly to the measurement of intraocular pressure (IOP).
b) Resistance from the ciliary bodies: The ciliary body produces aqueous humor, but IOP measures the pressure exerted by the amount of aqueous humor, not resistance from the ciliary bodies.
c) Amount of aqueous humor: IOP is determined by the balance between the production and drainage of aqueous humor within the eye.
d) Tear duct capacity: Tear duct capacity relates to tear drainage, not intraocular pressure.