Both appear to be part of a long-rumored AR/MR head-mounted display system from the tech giant.
U.S. Patent Publication 20210034145
When Will Apple Glasses Be Released?
Apple Glasses is the AR gear, whileApple Vision Prois the AR/VR headset that came out in 2024.

U.S. Patent Publication 20210034145
“However,Mark Gurman saysApple has postponed the AR glasses indefinitely.
How Much Will Apple Glasses Cost?
This is vastly cheaper than the company’s $3500 Apple Vision Pro headset.

Where to Pre-Order
Since there’s been no official announcement, there’s nothing to pre-order.
How Will Apple Glasses Work?
The Predictive, Foveated Virtual Reality System may include one or more cameras.

Apple Glass as imagined by some in the tech industry.Apple Insider
ThisFoveated 3D Graphics paper from Microsoft Researchis also helpful in understanding where Apple is headed with Apple Glass.
In 2022, Apple received a patent titled ‘Tunable and foveated lens systems’.
Or maybe there will be aclip-on prescription lens option like this patent details.