Oculus CV1 prescription fixed-frame（15mm vertex distance）

thingiverse

I have tested multiple different designs to find one that works well with the CV1's fresnel lens. Most of these designs put the lenses too close to the camera, resulting in diopter shift when they're not exactly aligned with the prescription. Every millimeter counts here - if the lenses are too close, even a small error can cause a 0.5-1.0D difference compared to what you really need. For higher prescriptions, this margin of error shrinks fast. It's one thing to adjust your eyes slightly for small errors, but it can get very tiring or even cause vision problems if the error is big enough.