Micheletti Biometer Adjustment Nomogram™ for ICL sizing

Select a measurement device, enter WTW and ACD (plus CCT when required), then calculate sizing recommendations and a theoretical vault prediction. If you choose to contribute de-identified data, a calculation number is generated so you can later enter post-op vault measurements for model validation.

Quick notes
This tool is intended for physicians for educational purposes. Outputs are not a substitute for clinical judgment.
1 Measurement device
Device selection drives the adjustment summary and the calculated adjusted measurements.
Select measurement device
Adjustment summary
Orbscan adjustment
WTW adjustment
+0.00 mm
ACD adjustment
+0.00 mm
ACD measured from (device)
-
2 Measurements
Enter measurements for one eye or both eyes. Fields are validated per eye.
Right eye (OD)
WTW (mm)
ACD (mm)
ICL size (unadjusted)
-
ICL size (WTW adjusted)
-
ICL size (WTW + ACD adjusted)
-
True ACD
-
Adjusted WTW
-
Adjusted true ACD
-
ICL size (mm) Predicted vault (µm)
Left eye (OS)
WTW (mm)
ACD (mm)
ICL size (unadjusted)
-
ICL size (WTW adjusted)
-
ICL size (WTW + ACD adjusted)
-
True ACD
-
Adjusted WTW
-
Adjusted true ACD
-
ICL size (mm) Predicted vault (µm)
Help improve this model
De-identified

What gets stored

Device selection, numeric measurements, and calculated recommendations. If you later submit post-op data, implanted ICL size, measured vault, and surgeon email are stored for validation. No patient identifiers should be entered.