Ophthalmic Calculators

Fitting Calculators

Centration Calculator (Near PD etc)

Thin Lenses

Thick Lenses

Spectacle Magnification

Intermediate Add Power Calculation

Power Along Meridians

Position of Wear and Compensated Values

Lens Surface (Geneva) Measurement Compensations

Prism Calculations

Iseikonic Lenses

Edge Thickness, Lens Volume and Weight

Zernike and Wavefront Conversions

Contact Lens Calculators (vertex & dislocation)

ACA ratios

BV Calculators