Yep. Bright light does the same thing. Also, in dim light, I'd expect this to make it pretty hard to see. My optometrist mentioned it to me, but neither of us could see the point.
Hm, sometimes I pinch thumb and forefinger together and then bring the opposing forefinger in to join them, forming a triangular aperture. Takes two hands, but I guess I like the level of control. :p
"Gentle" or not, is this actually safe for long-term use? Your pupil dilates in indoor light for a reason, I'm not sure if it's a good idea to fight that. You'd be better off just increasing ambient light levels to match sunlight.
I can’t imagine it being unsafe (assuming the drug itself doesn’t do damage) since the restriction would let less light in. It’s not like forcibly dilating the pupil which could let in more light than the eye could handle. It could make things appear too dark while it’s happening though.
Oh it's worse than that just pupil shrinking in dark. Basically, cone cells see color and detail but need more light, rods see in low light but mostly serve peripheral vision. So your vision system is just wholly optimized to only doing detail work in fairly bright light; nighttime is for predator evasion.
Another way to look at that: We likely evolved decent color vision to identify edible fruits. That wasn't doable with vision in the dark (and we opted out of the olfactory tech tree), so now your accurate-vision tasks are optimized for daylight.
Does this mean you could replicate the effect with brighter lighting? I was hoping for something that would actually make the lens more flexible.