A nurse is teaching a client who has open-angle glaucoma about eye drop administration. Which of the following instructions should the nurse include?

A. "Instill prescribed drops whenever your eyes feel irritated.": Eye drops for glaucoma are prescribed on a strict schedule to maintain consistent intraocular pressure reduction. Administering them only when irritation occurs can lead to ineffective treatment and progression of optic nerve damage. B. "Apply gentle pressure to the outer corner of your eye following eye drop administration.": The correct technique is to apply gentle pressure to the inner corner (punctal area) of the eye to prevent systemic absorption of the medication. Pressure at the outer corner does not prevent systemic effects and is not recommended. C. "Place the tip of the container in the lower conjunctival sac to administer.": Eye drops should be placed in the lower conjunctival sac, but the instruction is incomplete without guidance on avoiding contact with the eye surface to prevent contamination. Proper placement technique includes holding the dropper above the sac without touching the eye. D. "Wait 5 minutes before administering different eye drop medications": Waiting 5 minutes between different eye drops allows adequate absorption and prevents one medication from washing out the other. This practice optimizes therapeutic effects and minimizes interactions between multiple ocular medications.