# How we verify this knowledge

Explicit methods, identified references and technical results separated from physical validation.

## Editorial origin

Content is an educational synthesis based on each page’s references. External references do not imply endorsement of LensAs. Review for this edition is automated technical review; no human review or clinical validation is claimed.

## Reproducible calculations

Transposition, symmetric decentration and Prentice document inputs, units and conventions. API and MCP run the same code. Synthetic examples test equivalence, signs, unit conversion and invalid input rejection.

## Results and datasets

This edition publishes no patient dataset or accuracy benchmark for PD, thickness or edging. It contains no study of 420 measurements. A future study requires protocol, reference comparison, error, distribution, limitations and publication authorization.

## Physical verification

Software test results do not establish capture accuracy, adaptation or physical fit. Mounting and production require verification by the professional and laboratory.

## Corrections

Use the LensAs website contact to identify a passage and its reference. Revisions keep topic IDs stable and update the content version.