Isn't there a person who can shed crystals too? So if there's a such type of person when changing eye color then...I guess its believable. But still I want a video or proof of your eyes *_*
Pictures is not really evident, so video should work better.
Another way to change eye color is when you get old. Or when your eye color is fading due to those who wore contact/glasses. Like I said before my eye color is different from the rest of my family. My eye color is lighter than my family and I noticed for the past few years my friends eye color changes as well but they wore contact and I wore glasses.