The Cardiff Eye Shape Analysis Protocol (CESAP): Producing a digital representation of the anterior ocular surface

The Cardiff Eye Shape Analysis Protocol (CESAP) provides a repeatable and consistent method for producing solid, white-plaster, representations of a plaster cast AOS biomodel. Casting an impression in white plaster (Novadur™) produces a consistent surrogate AOS biomodel of a single stainless-steel 22 mm diameter ball. CESAP can be used as a framework for consistently converting an ocular impression into a 'real' AOS model that can be reverse-engineered to create 3D CAD models of the AOS shape for potential applications in optical image (topographer) calibration, prosthetic shell and scleral lens design, and AOS database development.