4 ms·
At a guess, it would track iris dilation to determine your focus depth.
by sageikosa 14y ago
At a guess, it would track iris dilation to determine your focus depth.
- StavrosK 14y agoI'm not really sure it's active, but still, the question of how you get something on a surface to become visible when you focus meters beyond that surface remains.
- CognitiveLens 14y agoIris dilation is primarily a response to light levels, not focus depth. Focus comes from stretching the lens behind the iris, which is possible to sense externally, but much more difficult.