Certified Ophthalmic Medical Technologist (COMT)

Answer: C - Ocular ointments provide the advantage of prolonged contact time and no tear dilution; however, blurred vision is a significant limitation.

Achieving controlled medication distribution to the eye is difficult. Low drug-contact time and low ocular bioavailability resulting from solution drainage and tear dilution happen with conventional systems. Although ointments may overcome these issues, the formulation can result in blurred vision, which may be a limiting factor for the patient.