Which statement about Rhopressa's additional mean IOP reduction is false?

• A. It adds an additional 2 mmHg reduction
• B. It adds an additional 5 mmHg reduction
• C. It represents an additional mean reduction
• D. It is part of the overall therapy effect

Answer: (B)

The key idea is understanding the incremental effect Rhopressa adds to IOP lowering when added to a stable background therapy. The “additional mean IOP reduction” refers to how much extra drop Rhopressa contributes beyond what you already achieve with the other medications.

In practice, the extra IOP lowering from Rhopressa is modest, typically around 2 mmHg on average (with variation depending on baseline IOP and the study). Saying it adds 5 mmHg is not aligned with how the drug usually performs, so that statement is false.

The other two points are correct: Rhopressa does represent an additional mean reduction attributable to the medication, and this additional effect is part of the overall therapy effect, contributing to the total IOP drop seen with the treatment regimen.