Final answer:
The patient's statement indicating correct understanding is that the antibiotic ointment will be placed directly into their eye to treat the infection. Other statements related to the partner's need for treatment, the function of antibiotics, and the continued use of contact lenses are incorrect.
Step-by-step explanation:
The correct statement by the patient that indicates an understanding of the treatment for bacterial conjunctivitis is "The ointment will be placed directly into my eye to treat the infection." This choice directly refers to the local administration of antibiotics which is the common form of treatment for bacterial infections of the eye like bacterial conjunctivitis. Antibiotics work by killing the bacteria or inhibiting their growth. Contact lens wearers should discontinue the use of lenses when they have conjunctivitis as they can harbor bacteria. The use of contact lenses could also exacerbate conditions like keratitis, which contact lens users are particularly at risk for.
Option A is incorrect because bacterial conjunctivitis is very contagious, the partner will require antibiotic drops only if they have contracted the infection. Option B is incorrect as antibiotic drops do not block the release of histamine, which is associated with allergic reactions rather than bacterial infections. Option C is incorrect because it is generally advised to discontinue the use of contact lenses during treatment for conjunctivitis to prevent further irritation and reduce the risk of reintroducing bacteria to the eye after treatment.