Crea FreeForm LDS is ProCrea’s advanced online lens calculation system. It is powered by a redundant Linux Cluster architecture and hosted on a high-bandwidth server farm in Italy, ensuring speed, stability, and continuous availability.
Laboratories connect via the Crea FreeForm Client, which establishes a secure SSL connection with the LDS server to exchange calculation files efficiently and reliably.
The platform fully complies with the “VCA (Vision Council of America) Data Communication Standard v3.08” for LDS file exchange and processing, guaranteeing compatibility and industry-standard performance.
Key Calculation Features (across all designs)
Image Generation
A comprehensive image package can be requested for each job, including thickness previews and power/cylinder maps on the final lens shape.
Best Ellipse Calculation
Optimizes center thickness by calculating the most suitable ellipse for each frame shape.
Automatic Inset and Corridor
For progressive addition lenses, the system determines the ideal inset and corridor length based on both frame geometry and wearer parameters.
Unwanted Astigmatism Minimization
Ensures the lowest possible level of unwanted astigmatism in PALs, according to prescription addition.