I`m from Germany. In the 70`s, early 80`s, our TV Station "ZDF" broadcasted a series of Horror-Movies, called: "Der Phantastische Film".
My mother sometimes allowed me to watch these series with her.
I cannot remember the title of the particular movie.
I think, it was about Frankenstein - but I`m not sure.
The particular scene, that frightend me so much, played in the Doctors Lab, where he had lots of glass jars with body parts in it. One of these jars contained a pair of eyes, complete with eye muscles and optic nerves. The protagonist of that movie brought a candle (or a torch) near that glass jar and these bodyless eyes moved away from the light.
At that point, I pulled my blanket over my head and followed the rest of the movie only listening.
On that evening, these bodyless, moving eyes teached me fear.