A nurse is reinforcing teaching with a client who has been newly diagnosed with chronic open angle glaucoma. Which of the following statements by the client indicates an understanding of the teaching?

Choice A rationale Many over-the-counter medications, especially cold and allergy remedies, contain sympathomimetics or anticholinergics. These substances can cause pupillary dilation, known as mydriasis. In patients with glaucoma, mydriasis can obstruct the outflow of aqueous humor, leading to a dangerous spike in intraocular pressure. Patients must be taught to consult healthcare providers before using these products to ensure they do not inadvertently worsen their condition or cause acute angle-closure episodes. Choice B rationale Glaucoma management requires strict adherence to a dosing schedule to maintain a consistent reduction in intraocular pressure. If a dose is missed, it should generally be taken as soon as the patient remembers, unless it is almost time for the next scheduled dose. Waiting until the next day or the next due time allows intraocular pressure to rise, which can cause irreversible damage to the optic nerve and progressive vision loss. Choice C rationale Chronic open-angle glaucoma is a progressive, lifelong condition that currently has no cure. The eye drops are used to manage intraocular pressure and prevent further damage to the optic nerve; they do not restore lost vision. Patients must understand that the medication is a permanent requirement. Stopping the drops because vision feels stable will lead to silent, asymptomatic pressure elevations and further permanent constriction of the visual fields. Choice D rationale Patients with chronic open-angle glaucoma require much more frequent monitoring than every two years. Standard care usually involves eye examinations, tonometry to check pressure, and visual field testing every three to six months, depending on the stability of the disease. A two-year interval is far too long and would likely result in undetected progression of the disease, leading to significant and preventable permanent blindness for the patient.