Which outcome is the target IOP intended to preserve?

• A. Visual function and quality of life
• B. Cupped optic nerve head only
• C. Peripheral vision only
• D. Intraocular pressure diurnal range

Answer: (A)

The main idea is that a target intraocular pressure is set to prevent glaucoma from causing functional vision loss, so the goal is to preserve visual function and the patient’s quality of life. By keeping pressure within a level tailored to the individual, we aim to slow or halt progression of optic nerve damage and the corresponding visual field loss that would interfere with daily activities, driving, reading, and safety. The target isn’t about keeping a cupped optic nerve head or preserving a single aspect like peripheral vision alone; those are important signs and components of disease but do not directly capture the patient-centered outcome we try to protect. Nor is it specifically about the diurnal range of IOP, which describes how much pressure varies during the day; that variability is a factor in risk, not the end goal. In short, maintaining visual function and overall quality of life through appropriate IOP management is the objective.