Which data are NOT used to determine target IOP?

• A. Individual's risk factors and disease stage
• B. Equation-based target
• C. Multiple untreated IOP measurements
• D. All of the above are used

Answer: (B)

The target IOP is set from an individualized assessment rather than a fixed formula. Clinicians use the patient’s risk factors and how advanced the glaucoma is (disease stage) to decide how aggressively to lower the pressure. They also rely on several untreated IOP measurements to establish the true baseline and to understand natural fluctuations, which helps define a realistic and safe target. There isn’t a universal equation that computes a precise target IOP from these factors, so an equation-based target isn’t used. Therefore, the option describing an equation-based target is the one that does not fit.