Refractive Outcomes Analyzer for Cataract & Lens Surgery

Free browser-based analysis of post-operative refractive outcomes: prediction error, cumulative UDVA, double-angle astigmatism plots and IOL lens constant optimisation. All analysis runs locally — no patient data ever leaves your device. How it works, benchmarks & FAQ →

Upload Your Outcomes Data

Import your cataract surgery spreadsheet to begin analysing outcomes

Drop your Excel file here
Drag & drop or click to browse your cataract outcomes spreadsheet
Accepts .xlsx · .xls · .csv · or use the sample data below. Non-template headers? A column-mapping step will guide you.
Data format settings
Date format
Cylinder convention
Snellen notation
Vision (VA) values
Plus-cylinder data is converted to minus-cylinder form on import. Snellen fractions (6/12 or 20/40) in vision columns are always recognised, whichever VA setting is selected. Changing date, cylinder or VA settings re-parses the loaded file automatically.
Get started with a spreadsheet
To see a live demo: download the sample data above, then drag & drop it onto the upload box to instantly explore 416 real-style surgical outcomes.