Pronghorn eyesight

[EdP]

My experience hunting pronghorn this year got me thinking about their eyesight. I encountered animals from 75 yds to probably close to a mile away. Their legendary sight showed them watching me from beyond where I could see them at all without my 10x binos. It was my encounters at 75 - 125 yds that got me thinking because I could clearly see they were pronghorns but they seemed unable to identify what I was. This turned out well for me but less so for a pronghorn buck. So, are they perhaps farsighted and can not focus at the closer distances? Have any others made similar observations or have theories on why this might be with pronghorn?

Note: I don't know how pronghorn eyes work. Human eyes deal with different distances by changing the shape of the lens in the eye (at least until we get old and the lens stiffens). Horse eyes don't change lens shape but horses can focus at different distances by looking through different parts of the eye.

 

[butcherboy]

As far as I know they have excellent sight both near and far. Maybe they were curious when you were closer and just couldn’t figure you out? They can also see sideways and behind as well. Not entirely behind themselves but close.