What is a typical process for selecting GP lens diameter?

What is a typical process for selecting GP lens diameter?

• A. Start with corneal diameter and topography data, choose a diameter that covers the cornea well and provides stable tear exchange; adjust based on fit.
• B. Use a fixed diameter for all patients.
• C. Choose the largest diameter available regardless of fit.
• D. Determine diameter by patient age alone.

Answer: (A)