Sony sells to theaters these glasses that project captions into the viewer’s field of view. They’ve been available for a few years, but I just learned about them recently after the Hearing Loss Association of America honored Sony with an innovation award (http://www.hearingloss.org/content/hlaa-announces-2016-award-recipients) at their 2016 convention.
The idea is pretty cool. The theater installs a transmitter by each projector and loans the glasses (and/or headphones) to any customer who wants them.
https://pro.sony.com/bbsccms/assets/files/mkt/digicinema/brochures/EntAccessGlasses-DI-0272_2.pdf
The same display technology is available as an open developer edition Augmented Reality headset (“sunglasses form factor”): http://developer.sonymobile.com/products/smarteyeglass/
~$900 in the US.