A Patient with Glaucoma Who Has Been Using Timolol

A patient with glaucoma who has been using timolol ( Timoptic ) drops for several days tells the nurse that the eyedrops cause eye burning and visual blurriness for a short time after administration. The best response to the patient's statement is

A) "These are normal side effects of the drug, which should become less noticeable with time."
B) "If you occlude the puncta after you administer the drops, it will help relieve these side effects."
C) "The drops are uncomfortable, but it is very important for you to use them as prescribed to retain your vision."
D) "These symptoms are caused by glaucoma and may indicate a need for an increased dosage of the eyedrops."