Apropos nothing in particular, and because my other thread has come to a (non-) conclusion…
I stumbled upon some papers while looking up hyperopic defocus, looking at the effects of time of day. A couple were on chicks, but there was also
- Evening exposure to myopic defocus causes a larger reduction in axial length.
- Only morning exposure to hyperopic defocus causes an increase in axial length.
Since AF may be related to myopic defocus, perhaps AF is more effective in the evening ?
(Though since AF is actually about resolving myopic defocus, it might be something different.)
Is simply watching a blurred TV in the evening all it takes …?