i think the eyes have nothing to do with it, for one reason: Blind snakes, born eyeless, manage to strike at their prey on the first try or maybe the second try. The heat pits give very good data on direction and distance of the food item. Blind snakes also dont tilt their head sideways. i think snakes have eyes mainly to watch out for predators that come from above, not for hunting.
so it sonds like neuro wobble to me.
what is unusual is that the snake is 8 years old and suddenly developed the issue only in 2012, and doesnt carry any genes known to cause the typical wobble.
Maybe the snake had a stroke, or some incident where the brain didnt get enough oxygen, or some infection that damaged the brain?
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