TODAY’S LASER PATIENT IS TOMORROW’S CATARACT PATIENT.

Twenty years after LASIK, the single most valuable document at the biometry station is the one almost no patient has: their pre-operative corneal data. RLES AI issues it on the day of surgery — and puts it to work at cataract age.

THE PASSPORT: ONE PAGE, FOR LIFE

After the refraction stabilises (≥ 3 months post-op), RLES AI produces a one-page, bilingual, surgeon-signed document: pre-operative K values and pachymetry, the manifest refraction and treatment parameters, stable post-operative values, and a note addressed directly to the future cataract surgeon. The patient keeps it for life; a QR code makes it machine-readable.

AT CATARACT AGE: THE RIGHT FORMULA PATH

• Post-myopic-laser eyes: Barrett True-K first (with the TK variant when total keratometry is available), then Haigis-L^[2] and Shammas-PL
• Standard formulas are explicitly not used on post-refractive corneas — the classic cause of the hyperopic surprise
• Consistency checks: today’s keratometry against the passport’s stable post-op K (a progressive gap triggers ectasia/warpage screening), and the expected K-change from the treated correction verified arithmetically
• The output is a verified input set with reasoning — the calculation itself stays on the cataract surgeon’s biometry platform

WHY IT MATTERS IN NUMBERS

Published data show the Barrett True-K formula performing equal to or better than the alternative methods on the ASCRS post-refractive calculator in post-LASIK and post-PRK eyes^[1] — but every formula is only as good as its inputs. The passport removes the guesswork that historical-data methods otherwise have to estimate.

FREQUENTLY ASKED QUESTIONS