The other element he mentions is that Apple’s working on both an iPhone app and a physical machine that scans a person’s head to figure out if it has the right light seal — a component that prevents light from interfering with a wearer’s field of view. When the company opens online orders in the US in early 2024, it will reportedly have customers upload their lens prescription and their head scan data.
Wasn’t the face scan a part of the original announcement? And appointments make sense at first the same way the early Apple Watch purchases required an appointment to make sure the bad was fit right and stuff.
Honestly, getting the fit on head right is probably super important to this product experience, and they won’t want to risk it.
Having worked on HMD optical designs, lenses can be designed to tolerate a wide variation of users with some degradation that isn’t too bad, but if you want to maximize stuff like field of view and brightness and other things, you can end up with a tiny spot that the eyes need to be in. If they’ve decided to do a more optimized lens design, they might have more strict eye box requirements.