Final answer:
When assessing a client taking amitriptyline for ophthalmic anticholinergic effects, the nurse should monitor for blurred vision, as it is a common side effect of the drug.
Step-by-step explanation:
The nurse assessing a client taking amitriptyline, which can have anticholinergic effects, should monitor for ophthalmic effects such as blurred vision (Option 1: A). Amitriptyline is a tricyclic antidepressant and the anticholinergic effects can include drying of the mucous membranes, which could theoretically lead to a decrease in tear production, not an increase. Symptoms such as photophobia and diplopia are also important to assess for, but blurred vision is the prominent symptom directly related to the anticholinergic effects of the drug on the eyes.