Smart glasses present a unique challenge: they have to be comfortable and keep a display precisely aligned with the eye.
Our VitalFit head avatars use high-fidelity physics-based simulations to predict realistic fit metrics, with realistic head shapes and tissue models.
Physical fit — mechanics of wearing
- Clamping force at the temples
- Pressure on the nose
- Frame stability during head movement
Optical fit — unique to near-eye displays
- Eye relief and eyebox coverage
- Interpupillary distance (IPD)
- Eye strain factors: optical axis alignment and binocular vertical misalignment
Fit Testing at Scale
We test designs against a comprehensive matrix of human head shapes and sizes — before a single physical prototype is manufactured. The result: designs that are market-ready for the full range of customers, not just the average head.
Glasses aren’t worn by mannequins standing still, we evaluate every metric while the head is in motion — testing comfort and display stability in realistic, dynamic use scenarios.