This tool lets cataract surgeons import their own surgical-outcome data (CSV or Excel) to assess the performance of any IOL power formula and optimise its constants. The statistical analysis is produced within seconds: automatic detection of the relevant columns, normality tests, distribution analysis and publication-ready charts (histograms, box plots, violin plots, cumulative distribution functions, scatter plots with regression). The optimisation relies on the sensitivity-factor method (F = 0.0006(P² + 2KP)) and computes three targets simultaneously, while keeping patient data confidential since everything is processed in the browser.
Key features
- Universal IOL-constant optimisation for any formula with a positional constant
- Smart column detection, whatever the spreadsheet layout
- Three simultaneous optimisation targets: zero mean error (ME=0), minimal standard deviation (SD-min) and minimal root-mean-square error (RMS-min)
- Regression on several biometric parameters and subgroup analysis with comparison
- Cumulative numeric filtering to target specific biometric populations
- Seven languages, dark mode, responsive design; no installation, no data sent to an external server