Kithra has written a piece on her blog Kithra's Krystal Kave, on these weird creatures: Glowing Red Eyes.
Why are glowing red eyes a big deal? Because eyes aren't self-luminous, explains Kitrha, referencing science, they reflect light. Red eyes aren't reflecting light -- light from where?
There's a lot of great material here; with good sources. I enjoy Kithra's writing; she informs, and knows her material.
About the red eyes: they're creepy. I wrote an artifice for UFO Digest a while ago about images that have disturbed me over the years. One of the images was of aliens rushing across a field (an Australian sighting.) They were typical "grays" but their eyes were glowing red; the illustration that flashed on the screen just threw me.
I had my own encounter with a red glowing eyed being when I was a child. More on that later.
