Just wanted to mention that the woman I referred to in this post, really had problems with her eyes; they were similar to mine, but more severe; with pressure as if the eyes will pop out + a blurry vision so bad that she was in danger of loosing her drivers license. In twilight / darkness she could hardly see road signs and had to stop the car sometimes just to focus enough to drive further.
It is now over a year ago since she stopped using rape seed oil for cooking; replacing it with butter; these symptoms never returned.