When kids have eyes that aren't aligned, they have no depth perception.
Just want to clarify that when eyes aren't aligned or aren't coordinated, there is not a complete lack of depth perception. People like myself who are born or develop very early eye coordination issues use many other coping mechanisms like lens muscle contraction feedback, relative sizing, lighting queues, ground position, shadows, trajectory, etc. to draw our 3d worlds. The mechanic missing is parallax vision which is awesome for small and faster moving things, areas that give me much more difficulty.
When there is a traumatic disruption to someone that has already gone through their critical development period (1-2yrs old) with coordinated parallax vision, then I'd expect very vivid results as you've described.
