> However, detecting environmental NIR information in the natural conditions at night without NIR illumination still remains challenging, requiring further advancements in material science and optical design.
Sadly no night vision contact lenses yet.
Well, using an IR flashlight will light the path only for the contact lenses wearer, so still pretty cool and plausible.
Identifying things that aren't the right temperature a trillions of dollars problem spread across many industries.
Though I think perhaps glasses are a better form factor for such tech.
This is what I was thinking. I already wear glasses. I wonder if there's a coating or something I can get applied that would add this.