A monocular works perfectly already. Decades ago I was walking around with a 640x480 monocular attached to a CF card in my Toshiba e755 WinCE PDA. Here's just one: https://www.amazon.com/Vufine-006011-Wearable-Display/dp/B01...

Here's me with a monocular. https://olin.monster/about.html The cable broke and the CF interface is outdated so I don't use it anymore. For me it might be best to get into an audio desktop or record my thoughts when walking as the background distracts as it moves like a sinus wave when walking. http://emacspeak.sourceforge.net/