Cross Cylinder Calculator

Oblique Cross Cylinder Calculator

Original Lens Power (Sphere / Cylinder / Axis)

Rotation (° / Direction)

Over-Refraction (Sphere / Cylinder / Axis)

Vertex (mm):

Lens Rotation Handling

Rotate Lens

Align cylinder to desired axis (e.g., Maxim3D/back-surface control).

Keep Original Rotation

Assumes on-eye rotation remains the same (e.g., soft toric/standard haptic).