Adjusted for axial length but still limited.
These use complex variables (like anterior chamber depth and lens thickness) or Artificial Intelligence to account for the eye's unique geometry. Challenges and Precision Biometry & IOL Power Calculations - PDF
Very high myopes (long eyes) or hyperopes (short eyes) require specialized formulas like the Wang-Koch adjustment. Adjusted for axial length but still limited
If you'd like to refine this into a formal PDF-ready document: Biometry & IOL Power Calculations - PDF
Once measurements are taken, they are plugged into mathematical formulas to predict the necessary lens power. These formulas have evolved through "generations" based on how they estimate the —the final resting place of the IOL in the eye.