Optometry Calculations tools

Vertex distance calculator:

Vertex distance calculator for spherical lens

Vertex distance calculator for toric lens

Radius of curvature and focal power calculator:

Radius of curvature of lens

Focal power of lens

Sagittal depth / Central thickness / Edge thickness calculator:

Sagittal depth, Central thickness, Edge thickness calculator

Corneal Radius of curvature to Corneal Dioptric power calculator:

Corneal Radius of Curvature to Corneal Dioptric power calculator

Oblique crossed cylinder:

Oblique crossed cylinder

Contact Lens magnification:

Contact Lens magnification

Prismatic effect for sphero-cylinder lenses:

Prismatic effect for sphero-cylinder lenses