The Nurse Identifies a Nursing Diagnosis of Risk for Injury

The nurse identifies a nursing diagnosis of risk for injury: corneal ulceration related to inability to close the eyelids secondary to exophthalmos for a patient with Graves' disease. An appropriate nursing intervention for this problem is to

A) teach the patient to blink every few seconds to lubricate the cornea.
B) elevate the head of the patient's bed to reduce periorbital fluid.
C) apply eye patches to protect the cornea from irritation.
D) place cold packs on the eyes to relieve pain and swelling.