Which of the following should be noted on the patient's health history record as a temporary contraindication to the use of contact lenses?

In the context of patient care and contact lens wear, acute conjunctivitis is classified as a temporary contraindication because it involves an active infection of the conjunctiva. During this condition, the eye is often red, irritated, and may produce discharge, which can complicate the fitting and wearing of contact lenses. Additionally, wearing lenses while having acute conjunctivitis can exacerbate the symptoms or prolong the infection, as the lenses can trap bacteria or irritants against the eye's surface. Therefore, it is essential to allow the infection to resolve before resuming contact lens use to ensure the health and comfort of the patient.

In contrast, amblyopia, glaucoma, and aniridia are not temporary contraindications. Amblyopia is primarily a visual impairment rather than a condition that directly impacts the safe use of contact lenses. Glaucoma, while it may necessitate careful monitoring and additional considerations regarding lens types and wear schedules, typically does not prohibit contact lens use outright. Aniridia, or the absence of the iris, can also accommodate contact lens wear with appropriate managing strategies despite the unique ocular surface challenges it presents.