As I am sure you all know, in trad. chinese medicine, the eyes reflect what is going on in the liver. I would hazard a guess that if you are having strange things going on with your vision, there is some kind of action happening in your liver.

Some years ago, I got carried away eating an entire can of coconut "milk" with the fat in it. That is LOTS of solid, saturated fat. Several hours later, I could barely see; everything looked crooked and distorted. It went away the next day, if I recall correctly.

It is a fact that the liver/gallbladder system can't handle sudden, large quantities of fat.