i have a background “wallpaper” on my linux box, that automatically changes every 10 minutes, with a random photo from a directory of photos i keep around. this one came around, and i immediately started wondering:
there’s this relatively modern (i believe they started some time in the 1920s or thereabouts, but didn’t really get off the ground until the 1960s) syncretic religion from viet nam called Cao Đài that has bits and pieces from buddhism, catholicism, taoism, and indiginous pagan beliefs from south asia (among other things), and their concept of “God” is a symbolism of the Divine Eye overseeing the universe, depicted above… according to wikipedia, this is a photo taken from inside the Tây Ninh Holy See. the official web site has a different representation, but it has the same aspect about which i have been wondering.
both of these “all seeing eyes” are left eyes…

it’s a little difficult to tell for sure, but i believe the “eye of providence” on the $1 bill is also a left eye…