Discuss bjt133's answer to: What could cause me to see everything green when I first wake up

This happened to me only a few weeks ago.  My off white blinds appeared green!  I was scared silly until I found a reasonable explanation from eye doctors on websites.

If you sleep in a room with sunlight streaming in, when you awake, your eyes need to adjust from the "red light" that filters through your closed eyelids (I dozed off facing an open window with bright sunlight coming in).  Your brain is adjusting when you wake up so for a moment or two, you perceive that opposing greenish tint until it readjusts fully.  Mine went away in a moment when I blinked.  Some have said it stayed with them for a few minutes.

Campers or sunbathers sometimes report this effect after napping outside too.

Seems that YeddaLuvr experienced this also from sleeping with the light on.  Same principle here. 

All  normal with this scientific explanation.  Of course it's probably always a good idea to run it by your doc the next time you have an exam; however, according to my research, no eye diseases are associated with this phenomenon.

Hope we all feel a little better now.   Next time, I'll nap with shades on.