Complex-eye intake checklist
Refractive history
LASIK, PRK, RK, enhancements, flap/cap status, historical data availability, and whether the corneal shape is stable.
Biometry confidence
Repeatability, agreement across devices, axial length extremes, lens thickness, ACD, K reliability, and ocular surface quality.
Corneal regularity
Topography/tomography, keratoconus or ectasia suspicion, high HOA, prior scars, dry eye, epithelial basement membrane disease.
Expectation setting
Higher residual refractive risk, possible enhancement, glasses backup, and cautious premium IOL counseling.
Risk patterns to separate from routine cases
| Case type | Planning issue | PrecisionIOL workflow support |
|---|---|---|
| Post-myopic LASIK / PRK | Standard keratometry can overestimate corneal power and bias IOL selection. | Flag post-refractive status, record historical data status, link to official calculators, document uncertainty. |
| Prior RK | Diurnal fluctuation, unstable corneal power, and hyperopic drift risk. | Require extra caution language, repeat measurements, and conservative target discussion. |
| Long eye | Higher refractive surprise risk and greater sensitivity to assumptions. | Show transparent formula spread and external verification reminder. |
| Short eye | Small ELP errors create larger refractive misses. | Surface short-eye warning and repeat-biometry documentation. |
| Irregular cornea / high HOA | Premium diffractive optics may perform poorly in degraded optical systems. | Trigger premium IOL caution and patient counseling language. |
| Ocular surface disease | Unstable K values and variable visual quality. | Document treatment before final measurements and premium counseling. |
Formula rights boundary
PrecisionIOL can be formula-aware without recreating proprietary formulas. The product should calculate only formulas it has rights to use, while pointing complex cases to official calculators, device labeling, and validated external resources when the surgeon needs them.
That distinction is useful for clinicians and safer for the product: PrecisionIOL documents the decision workflow and uncertainty rather than pretending one calculator output settles the case.
Plan complex cases with warnings visible
Use the planner to flag post-refractive history, high HOA, keratoconus/ectasia, formula spread, and counseling risk.
Open IOL Planner