Tilt + Face-form + BVD Compensation

UI page only. Optical maths is calculated server-side. Version 1.5 adds prism and decentration analysis using matrix Prentice calculations.

Inputs

Angles in degrees, BVD in mm

Lens index n

Calculation method

Pantoscopic tilt

Face-form (wrap)

BVD at refraction

BVD at wear

Power rounding

Axis rounding

Selected meridian for power analysis

OD decentration x (mm)

OD decentration y (mm)

OS decentration x (mm)

OS decentration y (mm)

Sphere S (D)

Cylinder C (D)

Axis α (deg)

Sphere S (D)

Cylinder C (D)

Axis α (deg)

Sanity test: with zero tilt/wrap, a minus lens moved from 20 mm to 10 mm should order less minus.

Clinical order appears first. Detailed teaching/debug output follows.

Press Calculate.