An OHTS score below which percentage indicates no treatment is required?

• A. 5-15%
• B. >15%
• C. 0%
• D. <5%

Answer: (D)

The test is about how to use the OHTS 5-year risk score to decide whether to treat ocular hypertension to prevent POAG. The OHTS risk calculator estimates the chance that a person with ocular hypertension will develop glaucoma within five years. If that predicted risk is below 5%, the absolute benefit of treatment is small enough that prescribing preventive therapy is not indicated. When the risk reaches 5% or higher, the potential benefit of treatment becomes meaningful, and discussing or starting therapy is reasonable after considering individual factors. The other percentages represent higher risk levels where treatment would be more strongly considered, not the threshold for doing nothing.