What is a stated benefit of empirical GP fitting?

• A. Increases probability of corneal damage
• B. Requires constant adjustments
• C. Maximum performance and fit
• D. Precludes use of topography

Answer: (C)

Empirical GP fitting uses measurements of the eye, often including corneal shape data, to predict a lens design that will sit well and perform well on the eye from the start. The main goal of this approach is to achieve maximum performance and fit by selecting base curves, diameters, and lens geometry that best match the individual corneal surface and tear film dynamics. When the lens geometry aligns closely with the eye, vision remains stable, movements are appropriate, and comfort is improved, reducing the need for later adjustments. Topography and other measurements inform the selection, rather than precluding their use, and the emphasis is on starting with a design that offers the best possible initial fit and optics.