Lens thickness: inputs needed for an estimate

Prepare the simulation

Gather sphere, cylinder, axis, index, monocular measurements, fitting height and shape. Identify right and left eyes and check units before comparing scenarios.

Controlled comparison

Keep prescription and frame constant when comparing indices. Record changing assumptions and distinguish a digital estimate from the manufactured lens.

LensAs tool

The full thickness simulation remains authenticated in the MAX plan. This public page explains inputs; it does not expose the proprietary calculation or promise equivalence with laboratory production.

References

• ZEISS — High index lenses
• LensAs — contexto público do produto

Related topics

• Refractive index: why prescription power alone is not enough
• How to calculate horizontal decentration
• Frame geometry: A, B and bridge