Thanks. I was hoping it was a sign of relaxation, since it is light that troubles my eyes the most in daily life. It's interesting nonetheless...
Don't forget about Sun Gazing. Before I started the Bates Method bright lights would, if not hurt my eyes, at least leave a long (several minute) afterimage. But now, although I haven't cured my vision I know enough to recognize signs of strain, such as "ow that light really hurts!" In fact, yesterday I was reading a magazine and suddenly some of the print looked smeared where it hadn't just seconds before. What does that indicate? Strain. Palmed for a moment and the smear was gone as long as I swung often enough.
I don't know what you have or haven't read, but some of THE BEST resources I've found on the Bates Method are: Perfect Sight Without Glasses (his book, just make sure nothing is omitted in any of these), Better Eyesight Magazine, Nancy's (a member here) blog, and of course this site. I can look with each eye individually right into the core of the Sun without discomfort, also when I'm not straining afterimages are usually less than 20 seconds, or perhaps a minute if I have too much strain, I'm still working on getting both eyes together to look at tge Sun though.