Which fitting approach dispenses GP lenses at a follow-up visit using information from the pre-fit examination?

Which fitting approach dispenses GP lenses at a follow-up visit using information from the pre-fit examination?

• A. Diagnostically fitting
• B. Topographical fitting
• C. Empirical fit
• D. Hybrid fitting

Answer: (C)

Empirical fitting relies on data collected during the pre-fit examination to estimate the GP lens parameters and dispense the lenses at the follow-up. By using measurements such as corneal curvature (keratometry), corneal diameter, and other ocular characteristics, along with knowledge of the lens design and manufacturer nomograms, you can select a base curve, diameter, and edge configuration that are likely to fit well without first trying diagnostic lenses. This approach aims to translate those pre-fit findings into a ready-to-wear lens choice, reducing the need for an initial diagnostic fitting session. Diagnostically fitting, in contrast, depends on trial lenses worn at the first visit to see how they actually perform, which delays dispensing. Topographical fitting uses the corneal topography data to guide the choice but isn’t defined by dispensing strictly from pre-fit data at the follow-up. Hybrid fitting describes the lens design, not the method of using pre-fit information to dispense.

Empirical fitting relies on data collected during the pre-fit examination to estimate the GP lens parameters and dispense the lenses at the follow-up. By using measurements such as corneal curvature (keratometry), corneal diameter, and other ocular characteristics, along with knowledge of the lens design and manufacturer nomograms, you can select a base curve, diameter, and edge configuration that are likely to fit well without first trying diagnostic lenses. This approach aims to translate those pre-fit findings into a ready-to-wear lens choice, reducing the need for an initial diagnostic fitting session. Diagnostically fitting, in contrast, depends on trial lenses worn at the first visit to see how they actually perform, which delays dispensing. Topographical fitting uses the corneal topography data to guide the choice but isn’t defined by dispensing strictly from pre-fit data at the follow-up. Hybrid fitting describes the lens design, not the method of using pre-fit information to dispense.