Comment by CamperBob2

Hmm.

   Aside from the debate over whether the speed of light 
   was infinite or not, a common side debate throughout 
   history was whether or not light originated in the eye 
   itself or from something else.  Among the famous 
   scientists to believe in the “light emitted from the 
   eye” theory were Ptolemy and Euclid.  Most who thought 
   this theory correct also thought the speed of light must 
   be infinite, because the instant we open our eyes, we 
   can see a vast number of stars in the night sky and that 
   number does not increase the longer we look, unless of 
   course we were previously looking at a bright light and 
   our eyes are adjusting to darkness.

I must be missing something. How dumb would someone have to be to think that light comes from peoples' eyes? All you have do to disprove it is ask someone if an object you're both looking at seems dimmer when you close your own eyes.