Industry-standard formulas with clinical guidelines and tolerance warnings
Convert lens powers between different vertex distances. Essential for high prescriptions and contact lens fitting.
Calculate unwanted prism from lens decentration. Critical for frame fitting and optical center positioning.
Determine optimal base curves for prescriptions. Balances optical performance with lens thickness.
Convert complex prescriptions to spherical equivalent. Useful for contact lens fitting and analysis.
Predict lens thickness before ordering. Essential for material selection and patient expectations.
Convert between plus and minus cylinder forms. Essential for prescription verification and lab ordering.
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