Final answer:
A nurse should ask about severe headache or eye pain after diagnosing a client with acute angle-closure glaucoma, as these symptoms are related to increased intraocular pressure.
Step-by-step explanation:
After an eye examination, when a client has been diagnosed with acute angle-closure glaucoma, it is relevant to ask about an accompanying history of severe headache or eye pain. This is because these symptoms can be associated with the rapid increase in intraocular pressure that characterizes acute angle-closure glaucoma. Frequent eye infections, diabetes mellitus, and blunt trauma to the eye, while important in overall eye health, are not as directly related to the acute presentation of this condition.