There is a slight pulsating blur that happens in Skyrim when the player either takes a hit or is knocked down. Does anyone know of a way to disable this? Mods like Requiem use the effect when the player is low on health, and it is very distracting.

(This does not appear to be affected by the options for radial blur in the Skyrim Configurator.)

That simulates getting hit. Just like you do when getting hit in RL. Not something I'm aware of that can be turned off as it may be hardcoded.