https://arstechnica.com/gadgets/2021/11/apple-patent-fights-lookie-loos-with-glasses-activated-screen-blur/

Apple is giving new meaning to the phrase "for your eyes only." A patent filed by Apple and published Thursday by the US Patent and Trademark Office details the tech giant's interest in creating "privacy eyewear" that blurs content on a device's screen unless someone wearing special glasses is using it.

As spotted by Patently Apple, the patent, which focuses on creating different FaceID profiles for various visual impairments, explores a new type of privacy screen. The patent doesn't specify any Apple product by name. Instead, it refers to electronic devices in general, including smartphones, watches, laptops, TVs, and car displays. Drawings in the patent show the feature working on a smartphone-like device.