Guttag's section about the lenses not being pancake and being refractive only I think is wrong, Apple says: "combined with custom catadioptric lenses," which implies reflection is is used like with pancake.
(source: https://www.apple.com/newsroom/2023/06/introducing-apple-vis... )
> It should be noted that the AVP displays about 3.3 times the pixels, has more and higher resolution cameras, and supports much higher resolution passthrough. Thus the AVP is moving massively more data which also consumes power.
An earlier Sony presentation on their 4K microdisplays from last year I believe showed they had some form of foveated scan out on the microdisplay itself, letting the display controller move less data.
(source: https://www.youtube.com/watch?v=IVUSUdzsNgY )
>Apple discussed (linked in WWDC 2023 video) how they implemented features in watchOS to encourage people to go outside and stop looking at screens, as it may be a cause of myopia. I’m not the only one to catch this seeming contradiction in messaging.
Isn't this less of an issue with displays at a farther distance (whether physically or optically)?
> I was doubtful based on what was rumored that Apple would address VAC. Like many others, Apple appears to have ignored the well-known and well-documented human mechanical and visual problem with VR/MR.
There is less vergence accommodation conflict as you age. You slowly lose elasticity of your natural lens as you age and need reading glasses to see up close and the effect isn't as big: you're at a wrong farther focus when your eyes are converging anyway. It might actually be an improvement in vision for people over 45-50.